Rainer Riehn (1941-2015) was a German musicologist, conductor and composer of avant-garde music. He is best known for being the long-time partner and collaborator of Heinz-Klaus Metzger with whom he published the journal
Musik-Konzepte between 1977 and 2003, devoted to the musical avant-garde of all eras. Together, they also founded the Ensemble Musica Negativa in 1969, committed to radical music by
John Cage,
Morton Feldman,
Dieter Schnebel, a.o., for which Riehn served as the conductor and organiser. Nevertheless, his own small but impressive compositional œuvre of chamber and electronic music remained mostly unpublished.
