Music using scales or tuning other than 12-tone equal temperament can be classified as xenharmonic music. This includes other equal divisions of the octave and scales based on
extended just intonation. Tunings derived from the partials or overtones of physical objects with an
inharmonic spectrum or
overtone series such as rods, prongs, plates, discs, spheroids and rocks occasionally are the basis of xenharmonic exploration.
William Colvig, who worked with the composer
Lou Harrison created the
tubulong, a set of xenharmonic tubes.
Electronic music composed with arbitrarily chosen xenharmonic scales was explored on the album
Radionics Radio: An Album of Musical Radionic Thought Frequencies (2016) by British composer
Daniel Wilson, who composed with frequency-runs submitted by users of a
web application that replicated
radionics-based electronic soundmaking equipment used by Oxford's
De La Warr Laboratories in the late 1940s.
Elaine Walker (composer) is an electronic musician who writes xenharmonic music by building new types of music keyboards. The
Non-Pythagorean scale utilized by
Robert Schneider of
The Apples in Stereo, based on a sequence of
logarithms, may be considered xenharmonic, as well as
Annie Gosfield's purposefully "out of tune" sampler-based music using non systematic tunings and the work of other composers including
Elodie Lauten,
Wendy Carlos,
Ivor Darreg, and
Paul Erlich. ==See also==