There is no shortage of reasons to break out your stash...of patchouli oil! New York's Whitney Museum of American Art is hosting an exhibit, Summer of Love: Art of the Psychedelic Era, while Cleveland's Rock and Roll Hall of Fame pays homage to Jimi Hendrix, Otis Redding, and the Doors. ''They found a lot of pictures of Jim Morrison when he was young,'' says the latter's Robby Krieger, who adds, with a laugh, that the live-for-today Morrison ''probably would have thought it was ridiculous.''
Ex-Monkee Peter Tork is on tour this summer with his Shoe Suede Blues band. Bob Weir and RatDog are also hitting the road, making a stop at the Gathering of the Vibes festival in Bridgeport, Conn., Aug. 9 -- 12. Jefferson Starship, Big Brother and the Holding Company, and Quicksilver Messenger Service are on a ''Summer of Love 40th Anniversary'' trek that peaks at the Monterey County Fairgrounds in central California (site of the 1967 fest), July 28 -- 29, where they will be joined by members of Moby Grape. ''[Our old] songs seem to apply more and more, given the circumstances we're in as a nation,'' says Starship guitarist Paul Kantner. ''Come to our show, and I hope to exhilarate you with the mystery of music!''

