Amy Bauer is Professor of Music at the University of California, Irvine. She has published articles and book chapters on the music of Thomas Adès, Carlos Chávez, Marc-Andre Dalbavie, Georg Friedrich Haas, Helmut Lachenmann, Mauro Lanza, David Lang, György Ligeti, Olivier Messiaen, Gabriela Ortiz, Salvatore Sciarrino, Helena Tulve, and Claude Vivier, as well as on television music, opera, spectral music, and the philosophy and reception of modernist music and music theory. Her monographs include Ligeti's Laments: Nostalgia, Exoticism and the Absolute (2011), and the collection György Ligeti's Cultural Identities (2017), co-edited with Márton Kerékfy.Liam Cagney is Lecturer in Music at BIMM University. His musical criticism regularly appears in publications like the Irish Times, Gramophone, the Guardian, the TLS, the Spectator, the Telegraph, VAN, and Frieze and his podcast with Stephen Graham, Talking Musicology, was nominated for a Classical:NEXTInnovation Award. Liam's first monograph Gérard Grisey and Spectral Music Composition in the Information Age was published in 2024. Will Mason is Associate Professor of Music at Wheaton College (MA). His work as a composer and performer has appeared on New Amsterdam Recordings and Exit Stencil Records. His scholarship covers topics ranging from microtonality to electroacoustic music, particularly concerning philosophies of embodiment.

I am convinced that this anthology is an important addition to the literature on late 20th-century music, with implications for the present day.

• Part I Introduction 1: Amy Bauer, Liam Cagney, and William Mason: Introduction Part II Spectral Precedents 2: Kenneth Smith: Skryabin's Mystical Space and the Spectral Attitude 3: Matthew Mendez: Hugues Dufourt's Epistemology of Fields, vis-à-vis Varèse and Bachelard 4: Robert Sholl: Olivier Messiaen: Spectralist 5: Alexandra Monchick: Paul Hindemith's Trautonium and a Technologically-Mediated Concept of Nature 6: Rebecca Leydon: Scelsi's pfhat: Apparitions of a Monumental Past 7: Benjamin R. Levy: Ligeti's Distant Resonances with Spectralism Kyle Gann: 8 The American Just Intonation Tradition Kyle Gann Robert Wannamaker: 9 James Tenney and the Theory of Harmony Charles Curtis: 10 Éliane Radigue and an "Unreal, Impalpable Music" Part III Spectralisms François-Xavier Féron: 11 Spectra as Theoretical and Practical Models in Gérard Grisey's Creative Process Marilyn Nonken: 12 Hugues Dufourt and the Origins of His World Liam Cagney: 13 Tristan Murail's Musical Poetics Edward Campbell: 14 Timbre, Technology, and Hybridization in the Music of Michaël Levinas Christopher Gainey: 15 Timbral-Harmonic Progression in Claude Vivier's Lonely Child Judith Lochhead: 16 On Saariaho's Microsonology Arnold Whittall: 17 Jonathan Harvey and Spectralism as "Spiritual Breakthrough" Amy Bauer: 18 Spectral Aesthetics and Ecological Listening in the Music of Helena Tulve Paul Clift: 19 Philippe Leroux and the Notion of the Post-Spectral Rebecca Flore: 20 Liminality and the Voice in the Works of Peter Ablinger Amy Bauer and Landon Morrison: 21 Electroacoustics, Optics, and Microtonal Aesthetics in the Music of Georg Friedrich Haas Alessandro Arbo: 22 Psychedelic Rock, Techno, and the Music of Fausto Romitelli Part IV Spectralism in Cross-Cultural Context Liviu Marinescu: 23 Horaltiu R&adulescu and the Intangible Dimensions of Plasmatic Music Robert Sholl: 24 Jean-Louis Florentz and Spectralism Yayoi Uno Everett: 25 Transcending Ethnicity: Post-Spectral Music by Xu Yi, Anthony Cheung, and Yoshiaki Onishi Nicole Grimes: 26 Giving Voice to Spectralism in the Music of Donnacha Dennehy Part V Spectral Performance Practices Marilyn Nonken: 27 The Spectral Attitude and Its Relation to Performance Richard Carrick: 28 Performing Spectral Ensemble Works by Grisey and Dumitrescu Ian Pace: 29 Sources, Aesthetics, and Performance in R&adulescu's Piano Sonatas Part VI Critical and Material Perspectives Aaron Hayes: 30 The Phenomenological Turn in Romanian Spectralism Philippe Lalitte: 31 Spectralism and Research in Psychoacoustics and Music Perception Stephen Lehman: 32 French Spectral Music and Improvisation William Mason: 33 Expression and Technologies of Perception in Zosha Di Castri and David Adamcyk's Phonobellow Joshua Banks Mailman: 34 Dynamic Form: Models for Analyzing Processive Form in Spectral Music Lukas Haselböck: 35 "La voix comme radicale altérité"? Spectral Music for the Voice Part VII Spectral Composers on Their Work Patricia Alessandrini and Timothy Rutherford-Johnson: 36 A Spectral Methodology of the Cultural and the Physical Edmund Campion: 37 Spectral Moments: Edmund Campion's Musical Influences from the Paris Years Ken Ueno: 38 Embodied Practice in Ken Ueno's "Person-Specific" Concertos Jean-Luc Hervé: 39 Jean-Luc Hervé, an Aesthetic of Surroundings Jacob Sudol: 40 Personal Examples of Sounds and Spectra as Symbols Rozalie Hirs: 41 Spectralisms in the Music of Rozalie Hirs and Their Points of Departure in Research and Innovation Index

Amy Bauer is Professor of Music at the University of California, Irvine. She has published articles and book chapters on the music of Thomas Adès, Carlos Chávez, Marc-Andre Dalbavie, Georg Friedrich Haas, Helmut Lachenmann, Mauro Lanza, David Lang, György Ligeti, Olivier Messiaen, Gabriela Ortiz, Salvatore Sciarrino, Helena Tulve, and Claude Vivier, as well as on television music, opera, spectral music, and the philosophy and reception of modernist music and music theory. Her monographs include Ligeti's Laments: Nostalgia, Exoticism and the Absolute (2011), and the collection György Ligeti's Cultural Identities (2017), co-edited with Márton Kerékfy.Liam Cagney is Lecturer in Music at BIMM University. His musical criticism regularly appears in publications like the Irish Times, Gramophone, the Guardian, the TLS, the Spectator, the Telegraph, VAN, and Frieze and his podcast with Stephen Graham, Talking Musicology, was nominated for a Classical:NEXTInnovation Award. Liam's first monograph Gérard Grisey and Spectral Music Composition in the Information Age was published in 2024. Will Mason is Associate Professor of Music at Wheaton College (MA). His work as a composer and performer has appeared on New Amsterdam Recordings and Exit Stencil Records. His scholarship covers topics ranging from microtonality to electroacoustic music, particularly concerning philosophies of embodiment.

I am convinced that this anthology is an important addition to the literature on late 20th-century music, with implications for the present day.

• Part I Introduction 1: Amy Bauer, Liam Cagney, and William Mason: Introduction Part II Spectral Precedents 2: Kenneth Smith: Skryabin's Mystical Space and the Spectral Attitude 3: Matthew Mendez: Hugues Dufourt's Epistemology of Fields, vis-à-vis Varèse and Bachelard 4: Robert Sholl: Olivier Messiaen: Spectralist 5: Alexandra Monchick: Paul Hindemith's Trautonium and a Technologically-Mediated Concept of Nature 6: Rebecca Leydon: Scelsi's pfhat: Apparitions of a Monumental Past 7: Benjamin R. Levy: Ligeti's Distant Resonances with Spectralism Kyle Gann: 8 The American Just Intonation Tradition Kyle Gann Robert Wannamaker: 9 James Tenney and the Theory of Harmony Charles Curtis: 10 Éliane Radigue and an "Unreal, Impalpable Music" Part III Spectralisms François-Xavier Féron: 11 Spectra as Theoretical and Practical Models in Gérard Grisey's Creative Process Marilyn Nonken: 12 Hugues Dufourt and the Origins of His World Liam Cagney: 13 Tristan Murail's Musical Poetics Edward Campbell: 14 Timbre, Technology, and Hybridization in the Music of Michaël Levinas Christopher Gainey: 15 Timbral-Harmonic Progression in Claude Vivier's Lonely Child Judith Lochhead: 16 On Saariaho's Microsonology Arnold Whittall: 17 Jonathan Harvey and Spectralism as "Spiritual Breakthrough" Amy Bauer: 18 Spectral Aesthetics and Ecological Listening in the Music of Helena Tulve Paul Clift: 19 Philippe Leroux and the Notion of the Post-Spectral Rebecca Flore: 20 Liminality and the Voice in the Works of Peter Ablinger Amy Bauer and Landon Morrison: 21 Electroacoustics, Optics, and Microtonal Aesthetics in the Music of Georg Friedrich Haas Alessandro Arbo: 22 Psychedelic Rock, Techno, and the Music of Fausto Romitelli Part IV Spectralism in Cross-Cultural Context Liviu Marinescu: 23 Horaltiu R&adulescu and the Intangible Dimensions of Plasmatic Music Robert Sholl: 24 Jean-Louis Florentz and Spectralism Yayoi Uno Everett: 25 Transcending Ethnicity: Post-Spectral Music by Xu Yi, Anthony Cheung, and Yoshiaki Onishi Nicole Grimes: 26 Giving Voice to Spectralism in the Music of Donnacha Dennehy Part V Spectral Performance Practices Marilyn Nonken: 27 The Spectral Attitude and Its Relation to Performance Richard Carrick: 28 Performing Spectral Ensemble Works by Grisey and Dumitrescu Ian Pace: 29 Sources, Aesthetics, and Performance in R&adulescu's Piano Sonatas Part VI Critical and Material Perspectives Aaron Hayes: 30 The Phenomenological Turn in Romanian Spectralism Philippe Lalitte: 31 Spectralism and Research in Psychoacoustics and Music Perception Stephen Lehman: 32 French Spectral Music and Improvisation William Mason: 33 Expression and Technologies of Perception in Zosha Di Castri and David Adamcyk's Phonobellow Joshua Banks Mailman: 34 Dynamic Form: Models for Analyzing Processive Form in Spectral Music Lukas Haselböck: 35 "La voix comme radicale altérité"? Spectral Music for the Voice Part VII Spectral Composers on Their Work Patricia Alessandrini and Timothy Rutherford-Johnson: 36 A Spectral Methodology of the Cultural and the Physical Edmund Campion: 37 Spectral Moments: Edmund Campion's Musical Influences from the Paris Years Ken Ueno: 38 Embodied Practice in Ken Ueno's "Person-Specific" Concertos Jean-Luc Hervé: 39 Jean-Luc Hervé, an Aesthetic of Surroundings Jacob Sudol: 40 Personal Examples of Sounds and Spectra as Symbols Rozalie Hirs: 41 Spectralisms in the Music of Rozalie Hirs and Their Points of Departure in Research and Innovation Index

Amy Bauer is Professor of Music at the University of California, Irvine. She has published articles and book chapters on the music of Thomas Adès, Carlos Chávez, Marc-Andre Dalbavie, Georg Friedrich Haas, Helmut Lachenmann, Mauro Lanza, David Lang, György Ligeti, Olivier Messiaen, Gabriela Ortiz, Salvatore Sciarrino, Helena Tulve, and Claude Vivier, as well as on television music, opera, spectral music, and the philosophy and reception of modernist music and music theory. Her monographs include Ligeti's Laments: Nostalgia, Exoticism and the Absolute (2011), and the collection György Ligeti's Cultural Identities (2017), co-edited with Márton Kerékfy.Liam Cagney is Lecturer in Music at BIMM University. His musical criticism regularly appears in publications like the Irish Times, Gramophone, the Guardian, the TLS, the Spectator, the Telegraph, VAN, and Frieze and his podcast with Stephen Graham, Talking Musicology, was nominated for a Classical:NEXTInnovation Award. Liam's first monograph Gérard Grisey and Spectral Music Composition in the Information Age was published in 2024. Will Mason is Associate Professor of Music at Wheaton College (MA). His work as a composer and performer has appeared on New Amsterdam Recordings and Exit Stencil Records. His scholarship covers topics ranging from microtonality to electroacoustic music, particularly concerning philosophies of embodiment.

I am convinced that this anthology is an important addition to the literature on late 20th-century music, with implications for the present day.

• Part I Introduction 1: Amy Bauer, Liam Cagney, and William Mason: Introduction Part II Spectral Precedents 2: Kenneth Smith: Skryabin's Mystical Space and the Spectral Attitude 3: Matthew Mendez: Hugues Dufourt's Epistemology of Fields, vis-à-vis Varèse and Bachelard 4: Robert Sholl: Olivier Messiaen: Spectralist 5: Alexandra Monchick: Paul Hindemith's Trautonium and a Technologically-Mediated Concept of Nature 6: Rebecca Leydon: Scelsi's pfhat: Apparitions of a Monumental Past 7: Benjamin R. Levy: Ligeti's Distant Resonances with Spectralism Kyle Gann: 8 The American Just Intonation Tradition Kyle Gann Robert Wannamaker: 9 James Tenney and the Theory of Harmony Charles Curtis: 10 Éliane Radigue and an "Unreal, Impalpable Music" Part III Spectralisms François-Xavier Féron: 11 Spectra as Theoretical and Practical Models in Gérard Grisey's Creative Process Marilyn Nonken: 12 Hugues Dufourt and the Origins of His World Liam Cagney: 13 Tristan Murail's Musical Poetics Edward Campbell: 14 Timbre, Technology, and Hybridization in the Music of Michaël Levinas Christopher Gainey: 15 Timbral-Harmonic Progression in Claude Vivier's Lonely Child Judith Lochhead: 16 On Saariaho's Microsonology Arnold Whittall: 17 Jonathan Harvey and Spectralism as "Spiritual Breakthrough" Amy Bauer: 18 Spectral Aesthetics and Ecological Listening in the Music of Helena Tulve Paul Clift: 19 Philippe Leroux and the Notion of the Post-Spectral Rebecca Flore: 20 Liminality and the Voice in the Works of Peter Ablinger Amy Bauer and Landon Morrison: 21 Electroacoustics, Optics, and Microtonal Aesthetics in the Music of Georg Friedrich Haas Alessandro Arbo: 22 Psychedelic Rock, Techno, and the Music of Fausto Romitelli Part IV Spectralism in Cross-Cultural Context Liviu Marinescu: 23 Horaltiu R&adulescu and the Intangible Dimensions of Plasmatic Music Robert Sholl: 24 Jean-Louis Florentz and Spectralism Yayoi Uno Everett: 25 Transcending Ethnicity: Post-Spectral Music by Xu Yi, Anthony Cheung, and Yoshiaki Onishi Nicole Grimes: 26 Giving Voice to Spectralism in the Music of Donnacha Dennehy Part V Spectral Performance Practices Marilyn Nonken: 27 The Spectral Attitude and Its Relation to Performance Richard Carrick: 28 Performing Spectral Ensemble Works by Grisey and Dumitrescu Ian Pace: 29 Sources, Aesthetics, and Performance in R&adulescu's Piano Sonatas Part VI Critical and Material Perspectives Aaron Hayes: 30 The Phenomenological Turn in Romanian Spectralism Philippe Lalitte: 31 Spectralism and Research in Psychoacoustics and Music Perception Stephen Lehman: 32 French Spectral Music and Improvisation William Mason: 33 Expression and Technologies of Perception in Zosha Di Castri and David Adamcyk's Phonobellow Joshua Banks Mailman: 34 Dynamic Form: Models for Analyzing Processive Form in Spectral Music Lukas Haselböck: 35 "La voix comme radicale altérité"? Spectral Music for the Voice Part VII Spectral Composers on Their Work Patricia Alessandrini and Timothy Rutherford-Johnson: 36 A Spectral Methodology of the Cultural and the Physical Edmund Campion: 37 Spectral Moments: Edmund Campion's Musical Influences from the Paris Years Ken Ueno: 38 Embodied Practice in Ken Ueno's "Person-Specific" Concertos Jean-Luc Hervé: 39 Jean-Luc Hervé, an Aesthetic of Surroundings Jacob Sudol: 40 Personal Examples of Sounds and Spectra as Symbols Rozalie Hirs: 41 Spectralisms in the Music of Rozalie Hirs and Their Points of Departure in Research and Innovation Index