Audiovisual concatenative synthesis is an analysis-driven granular technique using a corpus of multimedia data to sequence audio and video streams on a microtemporal level. This text outlines my development of this technique as a tool for multimedia composition, using my work, Replica, as a case study. The paper illustrates how the concepts of granular structure, gesture capture, and replication are integral not only to the software but to the architecture of the composition. In doing so, machine learning approaches to music and visual art are reviewed and related to my personal compositional practice. Additionally, I attempt to show how audiovisual concatenative synthesis provides a composer with strategies for shaping one's sense of time through disorienting audiovisual cues and tightly organized counterpoint between sound and image, stage and screen, and the real and virtual.

This document accompanies and explains the concepts used in the development of the composition, East is East, and West is West, (and Never the Twain Shall Meet). The process for generation and development of much of the musical content of the composition East is East, and West is West, (and Never the Twain Shall Meet) is the use of quoted musical materials. The second process, but equally as important, for development of the composition relies heavily on the idea of parallel development of modular ensembles and how the interactions created between them by sharing instrumentation can be a tool for development, as well as a challenge to the development of each module. Each module has an influence on at least one other module and is also influenced by at least one other module, creating a puzzle of interactions that must be navigated carefully when generating each individually. Both quotation and modularity are concepts employed by other composers, so this document also briefly explains how other composers have approached these concepts in their works in order to establish a historical relationship within the canon of western classical music to East is East, and West is West, (and Never the Twain Shall …

This paper provides an overview of the inspiration, research, and creative process involved in the composition of EverWind for orchestra and electronics. EverWind is based on field recordings from the American Southwest. The composition uses pitch material derived from spectral analysis of the recordings, and it incorporates a fixed media element using the field recordings that are then electronically manipulated to various degrees; this fixed media element is played alongside the orchestra. The paper also analyzes John Luther Adams' Dark Waves for Orchestra and Electronics and R. Murray Schafer's Music for Wilderness Lake in order to place EverWind within the broader musical context.

In the first half of the twentieth century, sporadic attempts of avant-garde composers to include sounds other than pitch in musical composition paved the way for the composers in the second half to embrace the sound of all types in their creative works. The development of technology since the mid-past century has facilitated composers' inclusive use of sound. The recent achievements in electronics and computers have led to cost-effective tools for today's composers to explore new possibilities in sound design and manipulation. Gradual for tenor saxophone and fixed electronics is primarily concerned with noise. Among the infinite possibilities of noise types, metallic sounds significantly contribute to the composition. The title of the piece refers to the compositional process in which the music progressively unfolds itself from the beginning to the end. The methods and strategies used to present the content give rise to a form I call accretion, described as an organic process by which the musical materials grow. Within the process, while established materials are interacting, combining, and forming layers, new materials may be incorporated and take part in the process. Throughout the composition, the interaction between sounds with common properties guides the music toward interactive unity, while the …

"Natural Disasters" is a cycle of five extractable movements for septet, conductor and computer. Each movement in the cycle is inspired by the ways that humans are affected by and respond to five different classes or categories of natural disasters: meteorological, such as hurricanes, tornados, and haboobs; geological, like earthquakes and landslides; hydrological, including flooding and sea level rise; wildfires; and extra-planetary disasters such as meteors and solar flares. The disaster types are used as overarching themes and also as sources for the organization of the movements and their surface details. This paper presents an overview of the conception and organization of cycle, the themes addressed in each movement and the compositional techniques used. The history of composers using weather or disaster-related themes in prior music is reviewed, and a survey of contemporary disaster-related compositions is presented.

Astronomy and music are both fundamental to cultural identity in the form of various musical styles and calendrical systems. However, since both are governed by incontrovertible laws of physics and therefore precede cultural interpretation, they are potentially useful for insight into the common ground of a shared humanity. This paper discusses three compositions inspired by different aspects of astronomy: Solstitium e Equinoctium, a site-specific composition for four voices and metal pipes involving an inclusive communal musical ritual and sonic meditation; Helios, a short symphonic work inspired by helioseismology; and Perspectives, a piece for soprano and percussion based on a logarithmic map of the universe.

This paper presents the history and the theoretical study of mixed music and focuses on two piano solo works and two mixed electroacoustic compositions for piano and electronics. By discussing the working process and giving the analysis of the original composition Alchemy for piano and electronics, this paper investigates the relationship between cause, source and spectromorphology, reflecting how the concept of energy-motion trajectory are embodied in this mixed electroacoustic work. Alchemy is a mixed composition for piano solo and 8-channel fixed electronics focusing on the gestural play and sonic expression. The live piano part explores the gestural sound played with a slide (cup), paper clip, and objects placed inside the piano. The 8-channel electronics part is mainly derived from the recorded acoustic piano. It extends the sonic potential of source materials and presents the diverse vectorial movements of spatialization.

Among the Voices Voiceless is a composition for flute (doubling piccolo), clarinet (doubling bass clarinet), viola, cello, percussion, piano, and electronics, based on the poem "What would I do without this world faceless incurious" by Samuel Beckett. The piece is a setting for disembodied voice: the vocal part exists solely in the electronics. Having no physical body, the voice is obscured as the point of empathy for the audience. In addition, instrumental solos compete for focus during the work's twenty minute duration. In passages including a soloist, the soloist functions simultaneously as antagonist and avatar to the disembodied voice. Spoken word recordings and electronic manipulation of instrumental material provides further layers of ambiguity. The companion critical essay "Among the Voices Voiceless": Setting the Words of Samuel Beckett proposes the distillation of Beckett's style into the elements of prosaicness, repetition, fragmentation, ambiguity, and symmetry. Discussions of Beckett's works such as Waiting for Godot and Molloy demonstrate these elements in his practice. This framework informs the examination of two other musical settings of Beckett's poetry: Neither by Morton Feldman and Odyssey by Roger Reynolds. Finally, these elements are used to analyze and elucidate the compositional decisions made in Among the Voices Voiceless.

In this thesis, I demonstrate how I use leitmotif in a programmatic context in my original orchestral suite, The Legend of Two Rings.

Forgotten Lyres is a musical response to Percy Bysshe Shelley's poem Mutability, which depicts the fragility and unpredictable nature of human life. Four independent chamber ensembles make up the performing forces of Forgotten Lyres; the musicians evoke the topics of Shelley's text as they interact and coordinate with one another according to a variety of paradigms and without the use of a conductor. This essay focuses on the approaches to coordination within and between ensembles, and the ways in which the musicians' interactions can evoke and convey Shelley's texts. The essay also examines works by Mel Powell, Toru Takemitsu, Witold Lutoslawski, and Pierre Boulez as examples and precursors for the coordination strategies employed in Forgotten Lyres.

Reference to a regular pulse is one of the most common ways of measuring time in music. As the basis for tempo, meter, subdivisions, and even formal symmetry, pulse, or the sonic articulation of regular units of time, is found throughout all levels of music. In this paper, I describe how I used a structure of twelve simultaneous pulses to compose "Monolith," a recent piece for MIDI piano, Pierrot ensemble, and fixed electronics. In the first chapter, I contextualize "Monolith" by briefly examining pulse's relationship to hierarchical structure in music and the possibilities for creativity in pulse-based hierarchical structures. In the second chapter, I analyze the use of pulse in Steve Reich's "Music for 18 Musicians," György Ligeti's "Self-portrait with Reich and Riley (with Chopin in the background), and Conlon Nancarrow's "Study No. 36 for Player Piano." In the third chapter, I describe in detail the relationship between the twelve-pulse structure and the various movements that comprise "Monolith," focusing on the relationship between compositional freedom and prescribed structure throughout the work.

This dissertation explores the analysis and creation of compositions from the standpoint of texture and momentum. It is comprised of four chapters. The first presents a number of concepts as tools for analysis, including textural typography and transformation, perception of time and psychological engagement of an audience, and respiration as a metaphor for musical momentum. The second and third chapters apply these tools to Gerard Grisey's "Periodes" and "Partiels," and Brian Ferneyhough's "Lemma-Icon-Epigram." The fourth explores specific methodologies used in composing my dissertation piece, "Phase," including the application of number systems ranging from formal to local levels.

This thesis explores collage music's formal elements in an attempt to better understand its various themes and apply them in a workable format. I explore the work of John Zorn; how time is perceived in acoustic collage music and the concept of "super tempo"; musical quotation and appropriation in acoustic collage music; the definition of acoustic collage music in relation to other acoustic collage works; and musical montages addressing the works of Charles Ives, Lucciano Berio, George Rochberg, and DJ Orange. The last part of this paper discusses the compositional process used in the works Tempered Confetti and Venni, Viddi, – and how all issues of composing acoustic collage music are addressed therein.

Candy Chang developed a public art installation where people are given the opportunity to write their answers to "Before I Die I want to ________." in a public space. I created one of these walls in Denton, TX and set it to music in a 12 minutes and 42 second piece titled Before I Die..., which combines elements of South Indian carnatic music, gospel, R&B, jazz fusion, and minimalism. The composition was influenced by the music of several crossover artists Becca Stevens, Michael League (Snarky Puppy), Nico Muhly, Poovalur Sriji, Tigran Hamasyan, and James Blake. Crossover music, fusion, and third-stream are all synonymous terms used to describe music where multiple genres or styles are authentically combined. The purpose of this thesis is to examine the balance of musical elements in crossover works as well as how specific works composed by the artists mentioned have influenced the creation of the Before I Die... piece.

The purpose of this critical essay is two-fold. First, the essay presents a detailed critical analysis of my original composition, Blueline Concerto for bass trombone and wind ensemble. Second, using Blueline Concerto, the essay presents preliminary findings of my study to develop an approach to composing that takes into account the musicians' health, specifically regarding noise induced hearing loss (NIHL). Through various hypothesized composition- and orchestral-based approaches, I test effectiveness on changes in NIHL risk while also noting that artistic merit and compositional integrity is preserved.

Galileo's Eyeglass is a celebratory work for full orchestra with standard instrumentation commemorating Galileo Galilei's discoveries of the four largest moons of Jupiter and the rings of Saturn in 1610. The composition is approximately 14 minutes in duration, and although divided thematically into four parts, the music is continuous. The work exhibits primarily a blend of contemporary styles and compositional elements, yet it is rooted in traditional tonality; furthermore, the piece is interspersed with references to Galileo's life and times, including quotations of a toccata composed by the scientist's brother, Michelangelo Galilei, transcribed from lute tablature. Chapter 1 of Part 1 investigates relevant historical threads extracted from the backdrop of Galileo's life, from reflections on the events that shape the musical program, to the selection and preparation of the period music composed by Galileo's brother. Chapter 2 discusses specific musical components of Galileo's Eyeglass, including form, musical quotations, motivic and thematic material, harmonic language, orchestration, and notation. Chapter 3 examines the principal philosophical themes behind the composition, including expressions of victory of a life well lived in spite of many obstacles. Part 2 contains the orchestral score.

Soar! is a musical composition written for wind ensemble and computer music. The total duration of the work is approximately 10 minutes. Flocking behavior of migratory birds serves as the most prominent influence on the imagery and local structure of the composition. The cyclical nature of the birds' journey inspires palindromic designs in the temporal domain. Aesthetically, Soar! portrays the fluid shapes of the flocks with numerous grains in the sounds. This effect is achieved by giving individual parts high degree of independence, especially in regards to rhythm. Technically, Soar! explores various interactions among instrumental lines in a wind ensemble, constructs overarching symmetrical structures, and integrates a large ensemble with computer music. The conductor acts as the leader at several improvisational moments in Soar! The use of conductor-initiated musical events in the piece can be traced back through the historic lineage of aleatoric compositions since the middle of the twentieth century. [Score is on p. 54-92.]

Rete Mirabile is my new installation piece combining scientific principles with live computer generated music. The title is a Latin term meaning "Wonderful Net," which I use to refer to the highly convoluted network of biological data that drives my installation. The sonification of data, computer modeling of biological processes, kinetic sculptures, and user interactivity are central parts of the installation. The paper is organized as follows: First, brief history of the forerunners that inspired my work is given. This includes a short discussion on how John Cage and David Tudor influenced current artists works, and how those works have influenced my own work. Then I review current installation works that share similarities with my own. Finally, a detailed discussion and analysis of the construction and function concludes the paper.

In Part I of this thesis, I examine the use of Latin American rituals, ceremonies, and traditional folklore as conceptual and compositional material; studying and re-contextualizing concepts, cultures, and ideologies, and introducing them to foreign audiences. I explore issues such as laptop improvisation, interaction with other performance forces, and the utilization of the social elements of non-western celebrations, as explored in Clestrinye, a work for live and fixed electronics, mixed ensemble, dancers, and painters.

Snow Spell is an interactive composition for erhu, flute, cello, piano, and Max/MSP interactive computer music system. This one-movement piece, Snow Spell, is intended to depict the beauty of a snow scene by presenting four different impressions of snow envisioned by the composer through music. The definition, history, and significance of interactive music are explored. Various modes of interactivity to control signal processing modules, and technical considerations for signal routing and level control in the interactive computer music system are also explored. Chinese music elements in Snow Spell including pentatonic scales, glissandi, and quotations from the Chinese folk tune River of Sorrow are investigated.

This paper examines the relationship between text and music in Prayers of Adoration, Confession, Thanksgiving and Supplication - a four-movement composition, fourteen minutes in length, for soprano, clarinet, bassoon, trumpet, trombone, violin, double bass, and percussion. The text of the composition is taken from the Psalms and The Book of Common Prayer. The names and themes of the movements follow an ancient pattern for prayer identified by the acronym, A.C.T.S. Compositional considerations are contrasted to those of Igor Stravinsky and Steve Reich, with special emphasis on the use of musical structures, motives, and text-painting to highlight the meaning of religious texts.

This paper observes the problems that impede meaningful analysis of form and structure in modern music, specifically electronic music. The premise of this research is to present methods, tools and practice for analyzing music whose visual interpretation, if any, do not represent the aural result of the composition. The means for suggesting a method are derived from documented observations in aural psychology, as well as composers' writings about musical perception. The result is an analytic model that focuses on the aural experience rather than the composers' compositional strategies which do not always agree with the resultant composition. The results from the analysis of music by Parmegiani, Harvey, Vega and Harrison help prove the general applicability of this research.

The Symphonic Fantasia Han-Kook oui Ja-Yeon (Nature in Korea ) is a single-movement orchestral piece, which is divided into 5 characteristic sections - each section has programmatic subtitles (Rocks, River, Sea, Wind, and Mountain) and its own idée fixe motive. The degree of texture (homophonic/polyphonic), dynamics (strong/weak), density (thick/thin), velocity (fast/slow), and orchestration (emphasizing various sections of the orchestra) is determined by depiction of the subtitles. The critical commentary of the Symphonic Fantasia Han-Kook oui Ja-Yeon (Nature in Korea ) includes a discussion of form, pitch content (melodic and harmonic), and texture of the piece. The commentary also includes a discussion of the use of programmatic subtitles (Rocks, River, Sea, Wind, and Mountain) and depiction of these concepts in the orchestration of the work. A comparison with other orchestral works is added for explanation and support of the composer's concept. Some of the other composers who are discussed in this paper include Richard Strauss (Alpine Symphony), Gustav Holst (The Planets), Frank Bridge (The Sea), Aaron Copland (Billy the Kid), and Joseph Klein (Pathways: Interior Shadows).

UNRAVEL, a work for alto saxophone and interactive electronics. Examines works for saxophone and electro-acoustic music. Analyzes modes of interactivity using Robert Rowe's guidelines, with sonogram, score, and programming examples. Investigates hybrid serial-parallel signal-processing networks, and their potential for timbral transformations. Explores compositional working methods, particularly as related to electro-acoustic music.