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.
the velvet underground / The Nice / earth opera Apr 11 - 13, 1969 Detroit, Michigan, United States Uploaded by Zimtrim
Jethro Tull / earth opera Feb 15, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
Jethro Tull / earth opera Feb 14, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
Jethro Tull / earth opera Feb 13, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
earth opera Feb 7, 1969 Stony Brook, New York, United States Uploaded by Zimtrim