"group_or_band" . . "The Deep was a short-lived American psychedelic rock band formed in Philadelphia, Pennsylvania, in 1966. The band was experimentally progressive, as they were one of the earliest groups to record psychedelic music, before it was adapted by a wider array of musical acts."@en . "1966Z"^^ . . . . . "The Deep"@en . "1966Z"^^ . .