"1970Z"^^ . . "Erwin Helfer"@en . . "Erwin Helfer (born January 20, 1936) is an American boogie-woogie, blues and jazz pianist."@en . . "1936-01-20Z"^^ . . . . . . "Helfer, Erwin"@en . . . . . "Americanboogie-woogie,bluesandjazzpianist" . . "1970Z"^^ . . "non_vocal_instrumentalist" . . "1936Z"^^ .