Pithecanthropus Erectus

Pithecanthropus Erectus is a studio album by the jazz composer and bassist Charles Mingus. It was released in August 1956 through Atlantic Records. Mingus noted that this was the first album where he taught arrangements to his musicians by ear instead of putting the chords and arrangements in writing. From Wikipedia (https://en.wikipedia.org/wiki/Pitheca...) under Creative Commons Attribution CC-BY-SA 3.0 (https://creativecommons.org/licenses/...)