Complex sentence: He took a brief break from Tower of Power to tour and record with the band Cold Blood, but re-joined Tower of Power a year later, touring and opening for Santana and Creedence Clearwater Revival.
Split into simpler sentences: He took a brief break from Tower of Power to tour and record with the band Cold Blood. He re-joined Tower of Power a year later, touring and opening for Santana and Creedence Clearwater Revival.