microtonen.

1914 A. H. F. Strangways Music of Hindostan iv. 127 ‘Heterotone’ would be a better name for śruti than the usual translation ‘microtone’.

1920 Outward Bound Oct. 77/1 The ancient Greeks also recognised and used these microtones. The Greeks found twenty-four in the octave and the Indians usually recognise twenty-two.

1946 Mod. Music Spring 113 The Oriental sound of Hovhaness' music is realized with occidental instruments not by preparing the instruments, nor by employing microtones, but solely through the character of the melody.

1970 W. Apel Harvard Dict. Music (rev. ed.) 527/1 Long a structural feature of Asian music, the use of microtones in Western music, although far from new, has been..far less extensive.

1991 Musical Q. Fall 326 Lybbert's composition is particularly poignant in its use of indeterminacy, clusters, and microtones to create a foreboding and tragic lamentation.