History and philosophy of xenharmonic music: Difference between revisions

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=== Setting the Stage ===

Like all such movements, the origins of xenharmonic music rest upon a convergence of trends in society. Three major forces laid this foundation: the ~~codification~~ of 12-EDO as the default tuning system~~, and the awareness of just intonation and other historical and world musics which provided a counterpoint to it~~; the broad shift in the 20th-century musical climate that ~~embraced experimentation~~ and ~~broke from~~ tonal tradition; and the rise of accessible technologies that empowered musicians to build instruments, ~~design and experiment with~~ tuning systems, and form decentralized networks.

Like all such movements, the origins of xenharmonic music rest upon a convergence of trends in society. Three major forces laid this foundation: the crystallization of 12-EDO as the default tuning system; the broad shift in the 20th-century musical climate that unraveled and rewove the fabric of tonal tradition through its embrace of experimentation; and the rise of accessible technologies that empowered musicians to build instruments, explore new tuning systems, and form decentralized networks.

By the ~~early 20th~~ century, 12-tone equal temperament had become the standard tuning system across Western music, embedded in instruments, notation, and education. It was often treated as a universal framework, leaving little room for alternatives. In response, musicians and theorists began revisiting just intonation, ~~supported by advances in acoustics and a renewed interest in the harmonic series. Historical~~ temperaments and global tuning ~~systems further~~ challenged the assumption of 12-~~EDO's~~ inevitability. This ~~development was probably~~ the ~~most important~~ conceptual foundation for the emergence of xenharmonic music, ~~because~~ without such a standard, how can a movement predicated on ~~the~~ rejection ~~of it~~ exist at all?

By the end of the 19th century, 12-tone equal temperament had become the standard tuning system across Western music, embedded in instruments, notation, and education. It was often treated as a universal framework, leaving little room for alternatives. Around this same time, Hermann von Helmholtz published his immensely influential ''On the Sensations of Tone'', which Alexander John Ellis translated into English and expanded—nearly doubling its length. Where Helmholtz revealed the psychoacoustic and physical basis of just intonation, Ellis added a vast catalog of microtonal scales, making the book the leading authority on tuning for decades. Especially significant was Ellis's introduction of the '''cent''', which enabled precise comparison and documentation of tuning systems. In response to all this, musicians and theorists began revisiting just intonation, historical temperaments, and global tuning practices—each of which challenged the assumption of 12-EDO’s inevitability. This shift laid the conceptual foundation for the emergence of xenharmonic music: after all, without such a standard, how can a movement predicated on its rejection exist at all?

The 20th century also saw a broad shift away from traditional tonality in Western music. Movements such as atonality, serialism, minimalism, spectralism, and electronic music challenged established ideas of harmony, form, and instrumentation. While not always focused on tuning, these movements collectively represented and fostered a climate of experimentation in which the assumptions behind 12-EDO could be questioned, which in turn made the exploration of alternative tuning systems a viable and compelling path for composers.

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 === Setting the Stage ===
-Like all such movements, the origins of xenharmonic music rest upon a convergence of trends in society. Three major forces laid this foundation: the codification of 12-EDO as the default tuning system, and the awareness of just intonation and other historical and world musics which provided a counterpoint to it; the broad shift in the 20th-century musical climate that embraced experimentation and broke from tonal tradition; and the rise of accessible technologies that empowered musicians to build instruments, design and experiment with tuning systems, and form decentralized networks.
+Like all such movements, the origins of xenharmonic music rest upon a convergence of trends in society. Three major forces laid this foundation: the crystallization of 12-EDO as the default tuning system; the broad shift in the 20th-century musical climate that unraveled and rewove the fabric of tonal tradition through its embrace of experimentation; and the rise of accessible technologies that empowered musicians to build instruments, explore new tuning systems, and form decentralized networks.
-By the early 20th century, 12-tone equal temperament had become the standard tuning system across Western music, embedded in instruments, notation, and education. It was often treated as a universal framework, leaving little room for alternatives. In response, musicians and theorists began revisiting just intonation, supported by advances in acoustics and a renewed interest in the harmonic series. Historical temperaments and global tuning systems further challenged the assumption of 12-EDO's inevitability. This development was probably the most important conceptual foundation for the emergence of xenharmonic music, because without such a standard, how can a movement predicated on the rejection of it exist at all?
+By the end of the 19th century, 12-tone equal temperament had become the standard tuning system across Western music, embedded in instruments, notation, and education. It was often treated as a universal framework, leaving little room for alternatives. Around this same time, Hermann von Helmholtz published his immensely influential ''On the Sensations of Tone'', which Alexander John Ellis translated into English and expanded—nearly doubling its length. Where Helmholtz revealed the psychoacoustic and physical basis of just intonation, Ellis added a vast catalog of microtonal scales, making the book the leading authority on tuning for decades. Especially significant was Ellis's introduction of the '''cent''', which enabled precise comparison and documentation of tuning systems. In response to all this, musicians and theorists began revisiting just intonation, historical temperaments, and global tuning practices—each of which challenged the assumption of 12-EDO’s inevitability. This shift laid the conceptual foundation for the emergence of xenharmonic music: after all, without such a standard, how can a movement predicated on its rejection exist at all?
 The 20th century also saw a broad shift away from traditional tonality in Western music. Movements such as atonality, serialism, minimalism, spectralism, and electronic music challenged established ideas of harmony, form, and instrumentation. While not always focused on tuning, these movements collectively represented and fostered a climate of experimentation in which the assumptions behind 12-EDO could be questioned, which in turn made the exploration of alternative tuning systems a viable and compelling path for composers.