Peter Rowan, Bread & Roses Festival 9/3/78, 37-7-24A Greek Theater, Berkeley, CA, American bluegrass musician and songwriter. Rowan plays guitar and mandolin, yodels and sings. Rowan teamed up with David Grisman in 1967 forming the band Earth Opera which frequently opened for The Doors. In 1969, Rowan joined Seatrain, along with Richard Greene. In 1973, Rowan, together with Greene, Grisman, Bill Keith, and Clarence White formed the bluegrass band Muleskinner. The band released one album. The same year, (1973), Rowan and Grisman formed Old and in the Way with Greene, Jerry Garcia, and John Kahn.