The Greatest 20th Century Symphonists You've Never Heard Of. Post 3: Joly Braga Santos

(This series of posts is dedicated to sartorias, to whom I promised them last November)
Post 1: Kurt Atterberg
Post 2: Cornelis Dopper

For this post, we have Joly Braga Santos (1924-1988). ( Text and sound clips under here )