 It became a quartet a few years later with the addition of Edmon "Bosyo" Fortuno, on drums, when Smith decided to play guitar instead.Among their first gigs was the 1970 Antipolo Rock Music Festival, an open-field concert similar to Woodstock, attended by thousands.Juan dela Cruz arguably invented the Pinoy rock genre, focusing on original songwriting in Tagalog, instead of covers of foreign hit songs in English.