Complex sentence: John Arthur "Jaki" Byard (June 15,1922--February 11,1999) was an American jazz pianist, composer and arranger who also played tenor and alto saxophones, among several other instruments.
Split into simpler sentences: John Arthur "Jaki" Byard (June 15,1922--February 11,1999) was an American jazz multi-instrumentalist composer and arranger. Mainly a pianist, he also played tenor and alto saxophones, among several other instruments.