Blas returns to performing on sax alongside his trademark percussion playing. It's not the only change for Blas; "Indestructible Spirit" also features a new band and several guests: Terry Delgado (coro), Isaac Guerrero (percussion), Paul Clark (tenor sax), and Raymond Sepeda (soprano sax). Says Blas, "This album differs in style, it has more of a funky jazz beat with a twist of Latin. Kind of a throwback to the 70s sound." for fans of Bobby Matos, John Santos, Jack Costanzo.