20th-century microtonal notation / by Read, Gardner, 1913-

Subjects:

The modern trombone : a definition of its idioms / by Dempster, Stuart

Table of Contents: “…Voice and multiphonics -- Vowels and consonants -- Glissandos -- Microtones -- Vibratos and trills -- Other body sounds -- Slide and bell disassembly -- Percussive devices and accessories -- Mutes -- Means of extension -- Theatrical implications.…”

An introduction to twentieth century music / by Hansen, Peter S.

Table of Contents: “…Experiments in music ; Noise music ; Microtonal music ; Later developments.…”

Twentieth-century music : a history of musical style in modern Europe and America / by Morgan, Robert P.

Table of Contents: “…A return to simplicity : minimalism and the new tonality -- Minimalism -- The rediscovery of tonality -- Microtonality -- 21. Music and the external world -- New approaches to language -- Extensions in music theater -- Multimedia -- Traditional opera -- The encroachment of reality -- Environmental music -- Music and politics -- 22. …”