Complex sentence: Martin, who still lived in Phoenix and could not regularly write songs with Racer X in Los Angeles, began writing lyrics immediately for demo tapes that Gilbert had sent, and recording for their first album, "Street Lethal", began quickly.
Split into simpler sentences: Martin, who still lived in Phoenix and could not regularly write songs with Racer X in Los Angeles, began writing lyrics immediately for demo tapes that Gilbert had sent. Recording for their first album, "Street Lethal", began quickly.