Violin repertoire composed in the late twentieth and early twenty-first centuries placed new demands on performers. While numerous pedagogues have written etudes and treatises analyzing traditional techniques, far fewer have thoroughly examined contemporary techniques. Many of the existing etudes and exercises inspired by contemporary violin repertoire are of a very high difficulty level and may seem unapproachable to students with little to no experience performing the music of recent decades. As a result, many violin students are unacquainted with the language of new music. This dissertation is intended to help fill a gap in the pedagogical literature by serving as a resource that familiarizes advanced students with the notation and proper execution of the non-traditional techniques commonly found in contemporary violin music. This document includes a survey of violin repertoire written since 1970, an analysis of the non-traditional techniques used most often in the works examined, methods for approaching specific technical problems that arise in them, and nine etudes originally composed by this author. The etudes focus on nine contemporary techniques, ranging from contact point variations to changing subdivisions, and are intended for study by advanced violinists interested in performing contemporary music.

The ability to sight-read well is held as a highly regarded and important skill in music performance and education. Over the past 90 years, researchers have investigated several aspects of music sight-reading, especially those attributes possessed by skilled sight-readers. A significant and recurrent finding from this body of research is the relationship between sight-reading and rhythm recognition. Though these studies have found positive effects and correlations between rhythm recognition and sight-reading, they have been limited and indirect. The aim of this dissertation was to investigate the effects of (a) practicing rhythms on a single pitch and (b) practicing rhythms with full-range scales and their direct effects on sight-reading ability in saxophonists at the college level. The primary objective in this research was to determine if one method was more effective than another in developing sight-reading skills. The participants (N = 74) consisted of college students who were enrolled in saxophone lessons at a university in the southwestern United States. Participants were administered a sight-reading pre-test at the beginning of an 8-week treatment period. After pre-testing, students were blocked into two groups. The first treatment group was assigned to practice rhythms on a single pitch and the second treatment group was assigned to practice rhythms combined with full-range major scales. After the treatment period, participants were administered a sight-reading post-test. A 2-way mixed ANOVA was used to determine if there were differences between treatment groups, differences from pre-test to post-test, and if there was a significant interaction between treatment and time. There was no significant difference between treatment groups, F (1, 72) = .035, p = .852, partial η2 = .000028. There was a significant effect for time, indicating that both treatment groups improved from pre-to post test, F (1, 72) = 83.499, p < .001, partial η2 = .537. There was no significant interaction between treatment and time, F (1, 72) = .322, p = .572, partial η2 = .004.

There is currently a great deal of information available to euphonium players who double on trombone, but far less for euphonium players who double on tuba. This dissertation takes information gathered from many top euphonium/tuba doublers, including: Benjamin Pierce, D.M.A., Aaron Tindall, D.M.A., Gail Robertson, D.M.A., Gretchen Renshaw James, D.M.A., Matthew Murchison, D.M.A., Matthew Shipes, D.M.A., Matthew Tropman, D.M.A., and Keith Kile, and presents a synopsis of their thoughts/reflections on tuba doubling. This dissertation is designed to aide euphonium players in the process of learning tuba, enabling them to be as efficient as possible with both their time and money throughout the process. Topics covered include: difficulties unique to the euphonium/tuba double and approaches to overcome them, similarities and differences between euphonium and tuba playing (from the perspective of euphonium/tuba doublers), "reverse" benefits of euphonium/tuba doubling on the primary instrument, literature recommendations for euphonium/tuba doublers, and equipment considerations for euphonium/tuba doublers.

The purpose of this document is to investigate how trumpet students at the University of North Texas experience music performance anxiety and to find out how professors prepare students for controlling music performance anxiety experiences. The interviewees were ten undergraduates and ten graduate students, as well as three trumpet professors who teach at the University of North Texas. The questionnaire responses of the student interviewees were examined, and literature is provided that address the most common performance related psychological and physiological symptoms experienced by the trumpet students. Effective and healthy strategies are discussed that were offered by the trumpet professors, and suggestions are made regarding potential benefits and detriments of trumpet performance anxiety.

The repertoire for trombone and percussion has grown in popularity since the later 1980s. There are currently more than 110 pieces written for the ensemble. This project follows the commissioning and collaboration of Dr. Blake Tyson, Professor of Percussion at the University of Central Arkansas and well known percussion composer, in the creation of a new piece for trombone and percussion. The project also created a survey of works for trombone and percussion duet that includes 32 works. The survey includes details such as specific percussion instrumentation range, tessitura, grade level, publisher, and a description of each piece.

As the bassoon has evolved over time, the music written for the instrument has evolved around it, and was many times the catalyst for its evolution. Bassoon music of the seventeenth through early twentieth centuries has defined much of the curricula for bassoon studies, and has established how we consider and experience the bassoon. We experience, write, and consume music in vastly different ways than just a generation ago. Humans use technology for the most basic of tasks. Composers are using the technology of our generation to compose music that is a reflection of our time. This is a significant aspect of art music today, and bassoonists are barely participating in the creation of this new repertoire. Performance practice often considers only the musical score; interactive electronic music regularly goes beyond that. The combination of technological challenges and inexperience can make approaching electroacoustic music a daunting and inaccessible type of music for bassoonists. These issues require a different language to the performance practice: one that addresses music, amplification, computer software, hardware, the collaboration between performer and technology, and often the performer and composer. The author discusses problems that performers face when rehearsing and performing interactive electroacoustic works for bassoon, and offers some solutions.

This paper uses the concept of mimesis to clarify the debate concerning the representation of reality in music. Specifically, this study defines the audio reality effect and the three main practices of realism as a way of understanding mimetic practices in multiple artistic media, in particular regarding the multimedia works of the "Landscape series." After addressing the historical debates concerning mimesis, this study develops a framework for the understanding of mimesis in sound by addressing the writings of Weiss, Baudrillard, Barthes, Deleuze, and Prendergast and by examining mimetic practices in 19th-century European painting and multimedia performance works. The audio reality effect is proposed as a meaningful translation of Roland Barthes' literary reality effect to the sonic realm. The main trends of realist practice are applied to electroacoustic music and soundscape composition using the works and writings of Emmerson, Truax, Wishart, Risset, Riddell, Smalley, Murray Schafer, Fischman, Young, and Field. Lastly, this study mimetically analyzes "2 seconds / b minor / wave" by Michael Pisaro and Taku Sugimoto and the works of the "Landscape series" in order to demonstrate the relevance of mimesis for understanding current musical practice.

This dissertation considers the use of orchestra bells as a solo instrument. I use three examples taken from chamber literature (Drumming by Steve Reich, Why Patterns? by Morton Feldman, and Ave by Franco Donatoni) to demonstrate uses of the instrument in an ensemble setting. I use six solo, unaccompanied orchestra bell pieces (Twelve Bell Canons by Robert Morris, Katarynka by Marta Ptaszyńska, Over by Stuart Saunders Smith, A Little Suite and an Encore Tango by Will Ogdon, Breaks Through by Lafayette Gilchrist, and Bells for New Orleans by Roscoe Mitchell) to illustrate the instrument’s expressive, communicative ability. In the discussion of each piece, I include brief background information, the composer’s musical language in the piece and performance considerations. I interviewed composers of these solo works to complete the research for this document to discuss their musical language and their thoughts on writing for solo orchestra bells.

Rising demand for improved fuel economy and structural efficiency are the key factors for use of aluminum alloys for light weighting in aerospace industries. Precipitation strengthened 2XXX and 7XXX aluminum alloys are the key aluminum alloys used extensively in aerospace industry. Welding and joining is the critical step in manufacturing of integrated structures. Joining of precipitation strengthened aluminum alloys using conventional fusion welding techniques is difficult and rather undesirable in as it produces dendritic microstructure and porosities which can undermine the structural integrity of weldments. Friction stir welding, invented in 1991, is a solid state joining technique inherently benefitted to reduces the possibility of common defects associated with fusion based welding techniques. Weldability of various 2XXX and 7XXX aluminum alloys via friction stir welding was investigated. Microstructural and mechanical property evolution during welding and after post weld heat treatment was studied using experimental techniques such as transmission electron microscopy, differential scanning calorimetry, hardness testing, and tensile testing. Various factors such as peak welding temperature, cooling rate, external cooling methods (thermal management) which affects the strength of the weldment were studied. Post weld heat treatment of AL-Mg-Li alloy produced joint as strong as the parent material. Modified post weld heat treatment in case of welding of Al-Zn-Mg alloy also resulted in near 100% joint efficiency whereas the maximum weld strength achieved in case of welds of Al-Cu-Li alloys was around 80-85% of parent material strength. Low dislocation density and high nucleation barrier for the precipitates was observed to be responsible for relatively low strength recovery in Al-Cu-Li alloys as compared to Al-Mg-Li and Al-Zn-Mg alloys.

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