While their second jazz rock album, "Where Have I Known You Before" (1974) was similar in style to its immediate predecessor, Corea now played synthesizers in addition to electric keyboards (including piano), and Clarke's playing had evolved considerably- now using flange and fuzz-tone effects, and with his signature style beginning to emerge. After Bill Connors left the band to concentrate on his solo career, the group also hired new guitarists. Although Earl Klugh played guitar for some of the group's live performances, he was soon replaced by the then 19-year-old guitar prodigy Al Di Meola, who had also played on the album recording sessions.