The Orckestra were a 12-piece English avant-garde jazz and avant-rock ensemble formed in March 1977 with the merger of avant-rock group Henry Cow, the Mike Westbrook Brass Band and folk singer Frankie Armstrong. They gave two performances in London in March and June 1977, and then embarked on two tours of Europe between September 1977 and May 1978, where they performed in Italy, France and Sweden.

Henry Cow were an English experimental rock group, founded at the University of Cambridge in 1968 by multi-instrumentalists Fred Frith and Tim Hodgkinson. Henry Cow's personnel fluctuated over their decade together, but drummer Chris Cutler, bassist John Greaves, and bassoonist/oboist Lindsay Cooper were important long-term members alongside Frith and Hodgkinson.