(music) Background music originally played by live performers.

Alternative form of musique concrète

(UK, now historical) Improvised noise created by banging saucepans, scrap metal etc., especially as a way for communities to express outrage or displeasure at someone's behaviour.

(Britain) elevator music

The graphical features of musical scores that when performed are unnoticeable by the listener.

Voluta musica, a medium-sized sea snail.

(historical) A title held by music directors especially at European universities or cathedrals; sometimes also at cathedral schools.

techno

A mostly instrumental middle-of-the-road music format, prominent on American radio from the 1960s to the 1980s. / Used other than figuratively or idiomatically: see beautiful, music.

(music) A type of music that employs electronic musical instruments and other electronic technology in its production.