Esta pesquisa tem como objetivo investigar a proposição do hipertexto didático sobre poéticas cênicas contemporâneas como ponto de partida em processos de aprendizagem e de criação do teatro, utilizando como principal aporte metodológico a abordagem da pesquisaação fundamentada por Michel Thiollent. A revisão bibliográfica resultou na elaboração de um hipertexto didático (MARTINS, 2006), a ser publicado na internet, sobre o Teatro da Vertigem (São Paulo), produzindo um material hipertextual e multimodal para uso pedagógico, que articula textos teóricos, análises críticas, registros de espetáculos e processos, depoimentos dos artistas, descrição e análise de procedimentos de criação e fragmentos de dramaturgia. A realização e a análise de dois experimentos de aprendizagem e encenação realizados na cidade de Campo Limpo Paulista (SP), com um grupo de iniciantes em teatro e outro formado por atores amadores na faixa etária de 18 a 42 anos, permitiu a sistematização de princípios e procedimentos metodológicos de ensino e aprendizagem do teatro contemporâneo. O jogo teatral a partir de modelos estéticos (KOUDELA, RYNGAERT, PUPO, MARTINS) e procedimentos da abordagem colaborativa desenvolvida por ARAÚJO, são os eixos norteadores das práticas de criação propostas nos experimentos realizados a partir do hipertexto didático criado pelo coordenador e ampliado pelos participantes. A seleção das referências teóricas se deu a partir da perspectiva de teóricos do teatro contemporâneo como LEHMANN, FERRAL, FERNANDES, ARAÚJO, PAVIS e SARRAZAC. Os resultados obtidos poderão contribuir para o debate acerca de abordagens metodológicas que integrem estudos teóricos e históricos com práticas colaborativas de criação da cena e que possam interessar para professores, coordenadores de oficinas e encenadores envolvidos na reflexão a cerca dos processos de aprendizagem e criação da cena contemporânea. / This work investigates the proposition of hypertext courseware on contemporary scenic poetic elements as a starting point for theater creation and learning processes, having primarily relied, as a methodological input, on Michel Thiollent\'s action-research approach. The bibliographical review has resulted in hypertext courseware (MARTINS, 2006), to be published on the internet, about Teatro da Vertigem (São Paulo), having thus generated a multimode, hypertext material for educational use, which puts together theoretical texts, critical reviews, records of spectacles and processes, testimonials of artists, a description and analysis of creation processes and procedures, and figments of theater practice. The conduction and analysis of two learning and staging experiments held in the city of Campo Limpo Paulista (São Paulo, Brazil), comprising a group of theater novices and another group made up of amateur actors aged 18 to 42, allowed me to systematize some learning principles and methodologies of the contemporary theater. The theater game based on esthetic frameworks (KOUDELA, RYNGAERT, PUPO, MARTINS) as well as on collaborative approach procedures devised by ARAÚJO are the guiding pillars for the creation practices proposed during the experiments based on the educational hypertext as devised by the coordinator and further expanded by the players. Selection of theoretical references has drawn on such contemporary theater theorists as LEHMANN, FERRAL, FERNANDES, ARAÚJO, PAVIS, and SARRAZAC. The results may contribute to debates over the methodological approaches that bring together theoretical and historical studies, on one part, and collaborative staging practices, which might be useful for teachers, workshop coordinators and stage directors involving in a reflection over the contemporary theater creation and learning processes.

No description available.

Thesis (MA)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: Central to a site-specific approach to performance is the concern for the potential of unconventional spaces. Appearing in multiple mediums, there seems to be little clarity on the parameters of this approach and it appears to have become a flexible term under which a plethora of manifestations have begun to collect. The aim of this thesis is to investigate a personalised site-specific approach to performance in order to provide insight into the role of the director in this approach, as well as to identify possible characteristics that might differentiate a site-specific approach to performance from other outdoor performance genres. Selected visual arts movements of the 1960s and 1970s which contributed towards the gradual development of a site-specific approach are Dadaism, abstract expressionism, minimalism, performance art, happenings, and land art. Artists involved in these movements challenged the traditional idealisation of aesthetic art works by placing importance on the physical experience and creation of art works. Eventually involved artists abandoned the galleries all together, exploring the potential of unconventional spaces through installations and performances. Theatre practitioners such as Artaud, Grotowski, Schechner, Malina and Beck contributed, amongst other things, on the breaking down of the theatre space, removing the stage and seating in order for the performance to engulf the audience in the action. Site-based performance was influenced by the above mentioned practitioners. Possible categories collected under this umbrella term are site-sympathetic, site-adjusted, site-specific and site-generic. Practitioners currently exploring these individual approaches in the Western Cape are amongst others Samantha Prigge- Pienaar, Louise Coetzer and Nicola Hanekom. A practical investigation of a personalised site-specific approach to performance, led to the following conclusions. Firstly, a site-specific approach to creating a performance requires the director to step into the role of facilitator, making decisions in response to the site rather than controlling the site. Secondly, the term site-specific is not fixed, as it expands and develops with the unique needs of every site. Thirdly, it is restrictive to say that elements like music and/or props cannot be brought into the site; however this depends on the nature of the site. Fourthly, while a complete set of characteristics cannot be made absolute for a sitespecific approach to performance two key features of this approach are the centrality of the site and the interactive relationships. Lastly, a site-specific approach to performance asks for a paradigm shift, whereby everything that is considered part of the traditional theatre should be reviewed. / AFRIKAANSE OPSOMMING: Die potensiaal van onkonvensionele ruimtes is sentraal tot ’n plek-spesifieke benadering tot performance. Daar blyk egter nie duidelikheid te wees oor die begrensing van hierdie benadering nie en dit lyk asof dit ’n buigsame term is waaronder ’n hele aantal moontlikehede kan voorkom. Hierdie tesis stel dit ten doel om ’n persoonlike plek-spesifieke benadering tot performance te ondersoek ten einde groter insig te verkry ten opsigte van die rol van die regisseur binne hierdie benadering, sowel as moontlike eienskappe te identifiseer wat hierdie benadering tot performance van ander buitelug performance genres onderskei. Gekose visuele kunste bewegings van die 1960s en 1970s wat bygedra het tot die geleidelike ontwikkeling van ’n plek-spesifieke benadering was Dadaïsme, abstrakte ekspressionisme, minimalisme, performance art, happenings en landskap kuns. Kunstenaars wat by hierdie bewegings betrokke was, het die tradisionele idealisering van estetiese kunswerke uitgedaag deur eerder klem te plaas op die skep van en die fisieke belewenis van kunswerke. Op die ou einde is daar wegbeweeg van gallerye en is die potensiaal van onkonvensionele ruimtes deur middel van instellasies en performances ondersoek. Teaterpraktisyns soos Artuad, Grotowski, Schechner, Malina en Beck het onder andere bygedra tot die herkonstruering van die teaterruimte, deur die skeidslyn tussen die verhoog en ouditorium weg te neem en die gehoor in die aksie te dompel. Plek-gebaseerde performance is onder deur bogenoemde praktisyns be nvloed. Moontlike kategorieë wat by hierdie sambreelterm ingesluit word, is plek-simpatiek, plek-aangepas, plek-spesifiek en plek-generies. Praksityns wat tans van hierdie benaderings in die Wes-Kaap ondersoek sluit onder ander in Samantha Prigge-Pienaar, Louise Coetzer en Nicola Hanekom. ’n Praktiese ondersoek van ’n persoonlike plek-spesifieke benadering tot performance het tot die volgende gevolgtrekkings gelei. Eerstens vereis ’n plek-spesifieke benadering tot die skep van ’n performance dat die regisseur die rol van fasiliteerder moet vervul, wat besluite neem in antwoord en reaksie op die ruimte, eerder as iemand wat die ruimte probeer beheer. Die term plek-spesifiek is tweedens buigsaam deurdat dit na aanleiding van die unieke behoeftes van elke ruimte ontwikkel of uitgebrei word. Derdens is dit beperkend om van die veronderstelling uit te gaan dat elemente soos musiek en/of rekwisiete nie in die ruimte ingebring kan word nie, die aard van die ruimte sal dit bepaal. Vierdens, alhoewel daar nie ’n volledige stel eienskappe vasgestel kan word vir ’n plek-spesifieke benadering tot performance nie, is twee hoof kenmerke van hierdie benadering die sentraliteit van die ruimte en die interaktiewe verhoudings. Laastens vereis ’n plek-spesifieke benadering tot performance ’n paradigmaskuif, wat alle elemente wat deel uitmaak van die tradisionele teater in heroorweging neem.

Toksino-antitoksino (TA) sistemos – tai poros viename operone esančių bakterijų ir archėjų genų, kurių vienas koduoja toksišką baltymą, o antras – jį neutralizuojantį baltymą-antitoksiną. Tol, kol ląstelėje gaminamas pakankamas abiejų baltymų kiekis, antitoksinas jungiasi su toksinu ir jį išaktyvina. Tačiau, esant nepalankioms aplinkos sąlygoms, labilesnis antitoksinas suardomas aktyvintų proteazių, o likęs laisvas stabilesnis toksinas slopina gyvybiškai svarbius ląstelinius procesus – baltymų arba DNR biosintezę, dėl ko stabdomas ląstelių augimas arba jos žūva. Escherichia coli chromosomoje aprašyta daugiau nei dešimt TA sistemų, kurių viena yra dinJ-yafQ, apie kurią žinoma labai nedaug. Anksčiau laboratorijoje atliktuose darbuose nustatyta, kad dinJ-yafQ koduoja transliaciją slopinantį toksiną YafQ, o DinJ ir YafQ baltymai sudaro stiprų baltymų kompleksą, slopinantį YafQ toksišką poveikį. Kol kas nieko nėra žinoma apie YafQ molekulės sritis, svarbias sąveikai su antitoksinu DinJ. Šiame darbe sekai atrankios mutagenezės metodu buvo tirtos YafQ baltymo sritys, svarbios sąveikai su „savuoju“ toksinu DinJ. TA sistemoms būdinga savo operono transkripcijos autoreguliacija. DNR sulėtinimo gelyje eksperimentais parodėme atrankią DNR ir antitoksino DinJ bei DinJ-YafQ baltymų komplekso sąveiką. Laisvas antitoksinas DinJ silpniau sąveikauja su DNR nei būdamas komplekse su YafQ, o sąveikai su DNR svarbi DinJ baltymo N galinė dalis. Iš dviejų dinJ-yafQ operono promotoriaus srityje... [toliau žr. visą tekstą] / Prokaryotic toxin antitoxin systems consist of two adjacent genes, where one encodes a stable toxin harmful to essential cellular processes (translation or DNA synthesis), and the other a labile antitoxin, capable of blocking the toxin's activity by binding into stable protein complex. TA systems are proposed to be involved in bacterial adaptation to stress conditions by modulating the level of essential biological processes. There are at least ten characterized chromosome-encoded TA loci in Escherichia coli. The dinJ-yafQ operon codes for YafQ toxin which is neutralized by its cognate antitoxin, DinJ. YafQ is known to inhibit translation in vivo and belongs to the RelE toxin family of toxin ribonucleases. By using site-specific mutagenesis of YafQ, we have investigated the protein regions important for its interaction with DinJ antitoxin. Transcriptional autoregulation has been reported for members of all known TA gene families and appears to be general characteristic of regulation of TA loci. In this work electrophoretic mobility shift assay was used to investigate the interaction between the antitoxin DinJ and DinJ-YafQ complex and dinJ-yafQ operon promoter DNA. Antitoxin DinJ in the complex with YafQ had an enhanced DNA-binding affinity compared to free DinJ. N-terminal domain of antitoxin is crucial for interaction with DNA. Bioinformatic analysis of dinJ-yafQ operon promoter region revealed several palindromic DNA islands and their importance for interaction with DinJ... [to full text]

A crucial step in the biosynthesis of membrane proteins is their incorporation into the hydrophobic environment of the lipid bilayer. In eukaryotic cells this event occurs largely in concert with translation on ribosomes bound to the membrane of the endoplasmic reticulum (ER) at a site termed the ER translocon. This dynamic proteinaceous complex forms an aqueous conduit across the ER membrane and is laterally gated to allow transmembrane (TM) segments to partition into the lipid phase. In the case of polytopic membrane proteins, the coordinated release of multiple TM segments by the ER translocon is a poorly defined process and appears to be highly substratespecific. In this study, the ion channel subunit P2X2 was used as a novel model to examine themolecular details of membrane protein integration at the ER translocon. A primarily in vitro approach was taken using stable biosynthetic intermediates to simulate each stage of the membrane translocation and integration of P2X2. Chemical and photoreactive site-specific cross-linking analyses were then conducted to determine the molecular environment of the P2X2 TM segments throughout biosynthesis. Remarkably, both TM1 and TM2 of P2X2 were found to remain directly adjacent to the ER translocon throughout P2X2 biosynthesis and were only dislocated into the lipid phase by artificial termination of translation and disruption of the ribosome-translocon interaction. Retention of P2X2 TM1 at the ER translocon is maintained despite the synthesis of over 300 amino acid residues separating it from the ribosome peptidyl transferase centre. Premature dislocation of TM1 from the ER translocon site resulted in a pronounced aggregation of TM1 fragments both in vitro and in vivo. This is in stark contrast to previous passive-partitioning models of membrane integration and suggests that the ER translocon regulates the integration of polytopic membrane proteins in order to accommodate the specific requirementsof the substrate protein itself. The detailed characterisation of P2X2 biosynthesis was then exploited in order to examine the effect of a novel small inhibitor of ER translocon function. Eeyarestatin 1 (ESI) was found to cause a substantial inhibition of protein secretion in vivo and dramatically reduced the ER translocation of three distinct classes of substrate, including P2X2, in vitro. Using both a cross-linking analysis and a protease-protection assay for a specialised translocation reaction, ESI was shown to prevent the transfer of the nascent polypeptide chain from the membrane delivery machinery to the ER translocon complex. Further evidence that ESI targets the Sec61 complex is presented and a model for ESI-mediated inhibition of ER translocation is suggested. Taken together these data establish ESI as a novel small molecule inhibitor that selectively inhibits protein translocation both in vitroand in vivo.

Master of Arts in Fine Arts - Fine Arts / A Community Partnership Art Event, resulting from curating and facilitating an educational collaboration was held on the 23 March 2004, ten years into South Africa’s democracy. Through a Masters in Fine Arts coursework entitled “Creating, Curating and Critiquing” offered at the University of Witwatersrand, I attempted to test the boundaries of the Arts and Culture Learning Area and explore alternatives to the current definition of “outreach”. The grade six learners from The Ridge School, an independent boys’ preparatory school and Salvazione Christian School, an assisted government school, were brought together over a period of ten weeks during regular school art lessons. Through the guidance and expertise of various artists, workshops were cocoordinated with the collaborative ideas of the learners coming to the fore. The process and dialogue established between learners, artists and educators was intended to shift my own parameters of teaching primary school art. Focusing on people rather than the final products points to a readiness to view knowledge not as a commodity owned b#31;#31;the expert teacher, but rather as something which can be constructed and developed with the learners. Originally the collaboration was intended as a celebration of the opening of new premises for Salvazione Christian School. The public art happening was held in a tent next to the informal settlement where a large majority of the children from Salvazione Christian School live. 3 Rather than what might be described as a modernist approach to art education, where the focus seems to be on the artist and artwork, the focus was on linking art to social interaction, and it was through the discovery of a form of hybridity that a number of differences between the two communities were challenged and exposed. This resulted in an approach that seems similar to the manner in which the Indian writer, Salman Rushdie writes of hybridity: “Hybridity, impurity, intermingling, the transformation that comes of new and unexpected combinations of human beings, cultures, ideas, politics, movies, songs.” (Coombes, 2000:39) Through this hybridity tensions were created and explored rather than a ‘rainbow’ or melting pot created, where differences are glossed over as in a multicultural approach. The primary research methodology was participant observation in which directly observed data was analyzed and interpreted. Data was gathered from the interactions in the workshops, setting up the exhibition and the art event. As intended, a link between art and ‘outreach’ was established. In order for this link to change into a community partnership, it must be seen as part of a much longer process. The process as a whole did become a different kind of primary school art space, preparing the way for possible positive transformation of the visual arts in the arts and culture learning area at primary school level.

Este texto descreve minha produção artística desde 1996. Partindo da obra \"Um pouco para cá, um pouco para lá\" estabeleci um fio condutor entre os trabalhos que a antecederam, descritos no capítulo \"Os Primeiros Trabalhos Tridimensionais\", e os trabalhos feitos depois dela, que estão no capítulo \"Experiências em Áreas Públicas\". Todas as obras apresentadas aqui são feitas de tecido; este material mole, em um primeiro momento, encontra apoio nos planos do ambiente onde são expostos e, em um segundo momento, em estruturas de madeira ou ferro. A obra principal desta dissertação apresenta características que considero importantes para compreensão deste percurso; ela está em uma condição intermediária entre os primeiros trabalhos de escala próxima à corporal e dependentes de um ambiente fechado para sua conformação e os trabalhos de grande escala feitos para áreas públicas que possuem uma estrutura que dá suporte ao tecido. O texto é acompanhado de uma documentação fotográfica dos trabalhos descritos e de situações cotidianas que são referências para sua criação; os textos de artistas e pensadores que auxiliaram na compreensão do meu percurso estão citados e/ou comentados em notas de rodapé, criando uma reflexão paralela ao texto principal. / This text describes my artistic production since 1996. Departing from the work \"Um pouco para cá, um pouco para lá\" I have established a conductor thread to connect the works that preceded it, described at the chapter \"First Three-dimensional Works\", and the works done after it, which are at the chapter \"Experiences in Public Areas\". All works presented here are done with textiles; this soft material, in a first instant, finds support at the environment planes where it is exhibited and, in a second instant, in wood or metal structures. The main work of this dissertation presents qualities which I consider important to the comprehension of this course; it is in an intermediary stage between the first works of a scale near to the corporeal and dependent on a closed ambient for its conformation and the big scale works done to public areas which have a structure to give support to the textile. The text is supplied with a photographic documentation of the described works and of quotidian situations which are references to its creation; texts from artists and think- ers which helped me to comprehend my course are cited and/or commented in foot- notes, creating a parallel reflection to the main text.

Der er ingen undoing i bioheden, der sker bare noget nyt. Går noget under, kommer noget nyt frem af det gamle. Vi har glemt at vi selv har gået under mange gange. Vi bygger huse ovenpå glemte samfund, som Mexico Citys opbyggelse af de gamle atzekertempler. Vi bygger alting oven på hinanden, lag på lag på lag, og det nye gemmer det gamle. Men under os ligger der stadig spor fra det der er født og forgået før os. Arkæologer og palæontologer graver brudstykker frem og vi er fastlåst i vores forestillinger. Er det først gravet op, kan vi ikke lægge det tilbage. Vi kan bare lede efter mere. Indtil vi finder ruinerne af os selv. Bioheden varer ved.

Aborda-se aqui a trajetória do compositor Hans-Joachim Koellreutter (1915-2005) e as relações com o debate teórico e prático da arte e estética do século XX, a partir de seus textos e obras. Uma estética que se desenvolve em íntima colaboração com a formulação de uma filosofia da história da arte que o compositor, paralelamente à sua prática composicional, expressa em artigos, palestras e cursos. A filosofia da história que vai construindo apresenta-se como a articulação entre duas temporalidades: grandes e pequenos períodos (Introdução), cujos marcos são transições, caracterizadas por crises entre sistemas que se esgotam ou que emergem para sua superação. Entre uma modernidade e uma contemporaneidade anacrônicas, a trajetória do compositor acaba nos proporcionando um modelo paradigmático dessa caracterização de crise estética apresentando alguns sintomas dessa dupla temporalidade: (i) a ressonância anacrônica dos vanguardismos do século XX aproximação arte vida comum; dessacralização dos valores da arte; quebra de protocolos ou preconceitos; subversão do meio; denúncia ou reflexão sobre os modos de produção; arte contra o consumo (Caps. I e II) , ocorrendo junto com (ii) tópicos que se tornariam marcas na contemporaneidade: arte funcional; autoria em rede colaborativa; arte voltada para a circulação; campo expandido e site específico (Cap. III). Por serem momentos de crise, transformações e hibridismo entre o velho e o novo carregam forças opostas: o primeiro resistindo e constituindo oposição através das formalizações e regulações; o segundo subjetivando-se através de novos paradigmas de forma e performance, momentos onde pode constituir-se uma vanguarda (Caps. II e III): um grupo que, em sintonia com sua época, consegue ligar as aspirações estéticas e formais com os conteúdos relevantes para interferir diretamente nessas transformações. Koellreutter compôs três peças na década de 1980 aqui escolhidas como material básico para exemplos e modelos: Ácronon, Nova-mente e Rôdô, músicas que novamente anunciavam o novo, cinquenta anos depois que aportou no Brasil, já como fenômeno de novidade (Cap. III). Tenta-se mostrar (Considerações Finais) como o compositor, ao lidar com essas duas forças a tradição e a modernidade tenta constituir uma relação que ele denomina de alfa privativaseu conceito de contrário sem contradição onde ele pode integrar tradição e a ruptura assim como o ruído e informação, estabelecendo íntima relação entre a ética e a estética. / We analyze here the trajectory of the German composer emigrated to Brazil in 1937, Hans- Joachim Koellreutter (1915-2005), and his relations with the theoretical and practical debate about art and the aesthetics of the 20th century, based on his original texts and works. An aesthetic that was developed in close collaboration with the formulation of philosophical ideas and art history which the composer, in parallel with his compositional practice, expresses in many articles, lectures and courses. The philosophy of history that he proposes presents itself as an articulation between two temporalities: large and small time intervals, whose marks are transitions, characterized by crises among systems that are exhausted or that emerge one day only to be overcome the nexto day. Inside an modernity and contemporaneity, both considered anacronic, the trajectory of the composer ends up providing us with a paradigmatic model of the characterization of an aesthetic crisis presenting some symptoms of a double temporality: (i) the anachronistic echos of the avantgardes of the twentieth century - common life as art approach; desacralization of art values; breach of protocols and prejudices; subversion of the means of productions ; denunciation or reflection on modes of production; (Caps I and II) -, occurring along with (ii) topics that would become brands in the contemporary world: functional art; collaborative authoring network; art oriented to difusion; expanded field and site specific (Chapter III). Thanks to these moments of crisis, transformations and hybridity between the old and the new carry opposing forces: the first resisting and constituting opposition through formalizations and regulations; the second subjectivizing itself through new paradigms of form and performance, moments in which a vanguard can be constituted (Caps II and III): a group that, in tune with its time, manages to connect the aesthetic and formal aspirations with the contents to interfere directly in these transformations. Koellreutter composed three especial pieces in the 1980s here chosen as the basic material for examples and models: Ácronon, Nova-mente and Rôdo, works that once again announced the new, which fifty years after he introduced in Brazil again as a phenomenon of novelty (Chapter III). Attempts to show (Final Remarks) how the composer, in dealing with these two forces - tradition and modernity. Finally we build a relationship that he calls a retritive alpha. His concept of the opposite without contradiction where he can integrate tradition and rupture as well as noise and information, establishing an intimate relationships between ethics and aesthetics.

Aborda-se aqui a trajetória do compositor Hans-Joachim Koellreutter (1915-2005) e as relações com o debate teórico e prático da arte e estética do século XX, a partir de seus textos e obras. Uma estética que se desenvolve em íntima colaboração com a formulação de uma filosofia da história da arte que o compositor, paralelamente à sua prática composicional, expressa em artigos, palestras e cursos. A filosofia da história que vai construindo apresenta-se como a articulação entre duas temporalidades: grandes e pequenos períodos (Introdução), cujos marcos são transições, caracterizadas por crises entre sistemas que se esgotam ou que emergem para sua superação. Entre uma modernidade e uma contemporaneidade anacrônicas, a trajetória do compositor acaba nos proporcionando um modelo paradigmático dessa caracterização de crise estética apresentando alguns sintomas dessa dupla temporalidade: (i) a ressonância anacrônica dos vanguardismos do século XX aproximação arte vida comum; dessacralização dos valores da arte; quebra de protocolos ou preconceitos; subversão do meio; denúncia ou reflexão sobre os modos de produção; arte contra o consumo (Caps. I e II) , ocorrendo junto com (ii) tópicos que se tornariam marcas na contemporaneidade: arte funcional; autoria em rede colaborativa; arte voltada para a circulação; campo expandido e site específico (Cap. III). Por serem momentos de crise, transformações e hibridismo entre o velho e o novo carregam forças opostas: o primeiro resistindo e constituindo oposição através das formalizações e regulações; o segundo subjetivando-se através de novos paradigmas de forma e performance, momentos onde pode constituir-se uma vanguarda (Caps. II e III): um grupo que, em sintonia com sua época, consegue ligar as aspirações estéticas e formais com os conteúdos relevantes para interferir diretamente nessas transformações. Koellreutter compôs três peças na década de 1980 aqui escolhidas como material básico para exemplos e modelos: Ácronon, Nova-mente e Rôdô, músicas que novamente anunciavam o novo, cinquenta anos depois que aportou no Brasil, já como fenômeno de novidade (Cap. III). Tenta-se mostrar (Considerações Finais) como o compositor, ao lidar com essas duas forças a tradição e a modernidade tenta constituir uma relação que ele denomina de alfa privativaseu conceito de contrário sem contradição onde ele pode integrar tradição e a ruptura assim como o ruído e informação, estabelecendo íntima relação entre a ética e a estética. / We analyze here the trajectory of the German composer emigrated to Brazil in 1937, Hans- Joachim Koellreutter (1915-2005), and his relations with the theoretical and practical debate about art and the aesthetics of the 20th century, based on his original texts and works. An aesthetic that was developed in close collaboration with the formulation of philosophical ideas and art history which the composer, in parallel with his compositional practice, expresses in many articles, lectures and courses. The philosophy of history that he proposes presents itself as an articulation between two temporalities: large and small time intervals, whose marks are transitions, characterized by crises among systems that are exhausted or that emerge one day only to be overcome the nexto day. Inside an modernity and contemporaneity, both considered anacronic, the trajectory of the composer ends up providing us with a paradigmatic model of the characterization of an aesthetic crisis presenting some symptoms of a double temporality: (i) the anachronistic echos of the avantgardes of the twentieth century - common life as art approach; desacralization of art values; breach of protocols and prejudices; subversion of the means of productions ; denunciation or reflection on modes of production; (Caps I and II) -, occurring along with (ii) topics that would become brands in the contemporary world: functional art; collaborative authoring network; art oriented to difusion; expanded field and site specific (Chapter III). Thanks to these moments of crisis, transformations and hybridity between the old and the new carry opposing forces: the first resisting and constituting opposition through formalizations and regulations; the second subjectivizing itself through new paradigms of form and performance, moments in which a vanguard can be constituted (Caps II and III): a group that, in tune with its time, manages to connect the aesthetic and formal aspirations with the contents to interfere directly in these transformations. Koellreutter composed three especial pieces in the 1980s here chosen as the basic material for examples and models: Ácronon, Nova-mente and Rôdo, works that once again announced the new, which fifty years after he introduced in Brazil again as a phenomenon of novelty (Chapter III). Attempts to show (Final Remarks) how the composer, in dealing with these two forces - tradition and modernity. Finally we build a relationship that he calls a retritive alpha. His concept of the opposite without contradiction where he can integrate tradition and rupture as well as noise and information, establishing an intimate relationships between ethics and aesthetics.