http://www.allmusic.com/artist/muhal-richard-abrams-mn0000509696
_ Muhal Richard Abrams track 01
https://youtu.be/x0fD1pFiT8E
_ Muhal Richard Abrams and Malachi Favors - Sightsong
https://youtu.be/qBy8_ZbktzQ
_ The Bird Song MUHAL RICHARD ABRAMS (1967 audio)
https://youtu.be/jXbzuFoob4k