Complex sentence: Byrd also studied with legendary avant garde composer John Cage (and was, according to Byrd, his last student), while Ono offered her loft to Byrd for the first public performance of his compositions.
Split into simpler sentences: Byrd also studied with legendary avant garde composer John Cage, and was, according to Byrd, his last student. Another former Cage student, Yoko Ono, offered her New York loft to Byrd for the first public performance of his compositions.