"The Buchla is a living thing."
The film about the Amercian synth pioneer and composer's career will premiere at SXSW 2017.
It was conducted by DJ Lance Rock at North Carolina festival Moogfest earlier this year.
EMA, Suzanne Ciani, and more pay tribute a man who tried to change the way humans interacted with their instruments.
He pioneered modular synthesis and created instruments that are still in use today.