It is synonymous. Chamber music is the music that is played by a Chamber orchestra.
Define the music
Chamber Music - Coal Chamber album - was created in 1998.
Fancy Chamber Music was created in 1998.
Chamber Music - book - was created in 1907.
Chamber Music Charleston was created in 2006.
Chamber Music Northwest was created in 1970.
Bloody Chamber Music was created in 2008.
Chamber music is locked up. Baroque music needs to be fixed.
Chamber Music - book - has 48 pages.
Portland Chamber Music Festival was created in 1994.
Earplay - new chamber music - was created in 1985.