Earth Opera was an American psychedelic rock group, active during 1967-1969 and featuring Peter Rowan and David Grisman.
These are photos from concerts where earth opera played, so they may be of other bands that played the concert as well.
Sam and Dave / Al Kooper / Mike Bloomfield / earth opera Dec 13 - 14, 1968 New York, New York, United States Uploaded by Zimtrim
Jefferson Airplane / earth opera Oct 4, 1968 Madison, New Jersey, United States Uploaded by Zimtrim
The Doors / earth opera Aug 30, 1968 Columbia, Maryland, United States Uploaded by Zimtrim
Richie Havens / earth opera May 19, 1968 Philadelphia, Pennsylvania, United States Uploaded by Zimtrim
Richie Havens / earth opera May 18, 1968 Philadelphia, Pennsylvania, United States Uploaded by Zimtrim
Richie Havens / earth opera May 17, 1968 Philadelphia, Pennsylvania, United States Uploaded by Zimtrim