Complex sentence: Segal is an accomplished banjo player; he played with a dixieland jazz band while in college at Columbia that assumed different names; when he was the one who booked a gig, he would bill the group as "Bruno Lynch and his Imperial Jazzband".
Split into simpler sentences: Segal is an accomplished banjo player; he played with a dixieland jazz band while in college at Columbia that had several different names. When he was the one who booked a gig, he would bill the group as "Bruno Lynch and his Imperial Jazzband".