Music Theory in 1990

Music Alone by Kivy, Peter

The Language of Music by Cooke, Deryck

From Chords to Simultaneities: Chordal Indeterminancy and the Failure of Serialism by Schoffman, Nachum

American Composers of Our Time by Machlis, Joseph

The Musical Ear by Lloyd, Llewelyn S., Lloyd, L. S.

20th-Century Microtonal Notation by Read, Gardner

Closure and Mahler's Music by Hopkins, Robert G.

Fundamentals of Musical Acoustics: Second, Revised Edition by Benade, Arthur H.