English Opera Group ended in 1980.
English Touring Opera was created in 1979.
The Threepenny opera was created from the Beggars opera in 1728. It was written by John Gay, a well known plat writer. It was created from the Beggars opera.
The Moments - English group - was created in 1963.
Pacific Opera was created in 2003.
The Flying Opera was created in 2008.
The Threepenny Opera was created in 1928.
Arizona Opera was created in 1971.
Opera Canada was created in 1960.
Pocket Opera was created in 1978.
Unhealthy Opera was created in 2006.
Sea Opera was created in 2009.