Question

A virtuoso on alto saxophone, flute, and bass clarinet, he was identified with the avant-garde; his "free" improvisations often included erratic screeching amid wild torrents of notes:

Answer 1

The answer is "Eric Dolphy".

Eric Dolphy was an American jazz artist, a virtuoso improviser on woodwinds and a noteworthy effect on free jazz.  

Dolphy started playing clarinet, oboe, and alto saxophone in his childhood and went to Los Angeles City College. He was in Roy Porter's huge band amid the late 1940s. He at that point put in a couple of years in a U.S. Armed force band, after which he exchanged to the U.S. Maritime School of Music. After coming back to Los Angeles, Dolphy played locally. He originally turned out to be broadly perceived when he visited and recorded with the Chico Hamilton quintet in 1958– 59.