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21	Techniques for automated and interactive note sequence morphing of mainstream electronic music Wooller, René William January 2007 (has links) Note sequence morphing is the combination of two note sequences to create a ‘hybrid transition’, or ‘morph’. The morph is a ‘hybrid’ in the sense that it exhibits properties of both sequences. The morph is also a ‘transition’, in that it can segue between them. An automated and interactive approach allows manipulation in realtime by users who may control the relative influence of source or target and the transition length. The techniques that were developed through this research were designed particularly for popular genres of predominantly instrumental electronic music which I will refer to collectively as Mainstream Electronic Music (MEM). The research has potential for application within contexts such as computer games, multimedia, live electronic music, interactive installations and accessible music or “music therapy”. Musical themes in computer games and multimedia can morph adaptively in response to parameters in realtime. Morphing can be used by electronic music producers as an alternative to mixing in live performance. Interactive installations and accessible music devices can utilise morphing algorithms to enable expressive control over the music through simple interface components. I have developed a software application called LEMorpheus which consists of software infrastructure for morphing and three alternative note sequence morphing algorithms: parametric morphing, probabilistic morphing and evolutionary morphing. Parametric morphing involves converting the source and target into continuous envelopes, interpolation, and converting the interpolated envelopes back into note sequences. Probabilistic morphing involves converting the source and target into probability matrices and seeding them on recent output to generate the next note. Evolutionary morphing involves iteratively mutating the source into multiple possible candidates and selecting those which are judged as more similar to the target, until the target is reached. I formally evaluated the probabilistic morphing algorithm by extracting qualitative feedback from participants in a live electronic music situation, benchmarked against a live, professional DJ. The probabilistic algorithm was competitive, being favoured particularly for long morphs. The evolutionary morphing algorithm was formally evaluated using an online questionnaire, benchmarked against a human composer/producer. For particular samples, the morphing algorithm was competitive and occasionally seen as innovative; however, the morphs created by the human composer typically received more positive feedback, due to coherent, large scale structural changes, as opposed to the forced continuity of the morphing software.
22	Interaktiv musikkomposition / Interactive Music Composition Andersson, Anders-Petter January 2012 (has links) This dissertation, titled Interactive Music Composition, is a practice based Ph.D. thesis in the field of Musicology. The purpose is to explore if and how one can compose computer based interactive music, that is musically satisfying for an interacting audience, consisting of both laymen and skilled musicians. The text describes the design and reflection in two interactive music installations: Do-Be-DJ, open-air installation in a public park, and, Mufi, with modular and moveable interface. Based on methods and perspectives in Musicology and Interaction Design, a composition model for interactive music is developed. The model investigates the experience dimensions listen, explore, compose and collaborate. It also investigates the design dimensions of interaction, narrative structure, composition rule and sound node. The conceptual approach is to apply improvisation and composition methods from jazz, pop and groove based music on interactive music. It also uses the concepts of openess in musical structures and interpretation, musical mediation of actions and meaning and everyday use of music, when composing interactive music. The dissertation contributes to an understanding of how to create composition techniques for interactive music, such as: Direct, varied and shifting response. It reflects on the change in meaning of the musicological terms composition, improvisation, musical work, listener, musician and audience. And on the interaction design terms interaction, gameplay, system and user. The term co-creator is used to describe an actively, interacting and collaborating person, to complement traditional terms like audience, performer and user. / <p>Ljudfiler till avhandlingens bilaga 1, http://musicalfieldsforever.com/dobedj_more.html; Videodokumentation av Do-Be-DJ, Interaktiv installation, http://musicalfieldsforever.com/dobedj_more.html; Videodokumentation av Mufi I och II, Interaktiv installation, http://musicalfieldsforever.com/mufi_more.html; Doktorandtjänsten finansierades av Interactive Institute; Musikinspelning finansierades av Framtidens Kultur genom Skiften på Malmö högskola</p> / Interaktiv musikkomposition / Interactive Music Composition / Interaktiv ljuddesign / Interactive Sound Design / Musik och Hälsa / Music and Health Interactive Music Music Composition Improvisation Sound Design Interaction Design Musicology Narrative Gameplay Co-creator Collaboration Open Computer Music Practice based Artistic Research Research by Design Music analysis Musicking Musical Mediation Shifting response Genre Funk Jazz Techno SuperCollider Max/MSP Interaktiv musik Musikkomposition Improvisation Ljuddesign Interaktionsdesign Musikvetenskap Narrativ Spelbarhet Medskapare Samarbeta Öppen Datormusik Praktikbaserad Konstnärlig forskning Konstnärlig-kreativ Designforskning Musikanalys att musika Musikalisk mediering Skiftande response Genre Funk Jazz Techno SuperCollider Max/MSP

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Techniques for automated and interactive note sequence morphing of mainstream electronic music

Interaktiv musikkomposition / Interactive Music Composition