Complex sentence: He was a music professor, composer, conductor, leader of vocal quartets and quintets and conducted a big band orchestra, Had a masters degree in Sarajevo on the topic beginning and development of Jazz in Yugoslavia.
Split into simpler sentences: He was a music professor, composer, conductor, leader of vocal quartets and quintets and conducted a big band orchestra. He had a masters degree in Sarajevo on the topic beginning and development of Jazz in Yugoslavia.