(Study Score). The chamber music works are among Hindemith's most successful instrumental works of the 1920s. But the title is misleading: The individual pieces actually have concertante soloistic features instead of submitting to chamber music traditions. Chamber Music No. 7 focuses on the organ. Written for the broadcaster Frankfurter Sender, the work took then virulent music recording and broadcasting problems on the radio into account in its instrumentation for chamber music and the elaboration of the musical setting. The score is based on Vol. IV/3 (PHA 403) of the Hindemith Complete Edition, edited by Giselher Schubert.