Ocote Soul Sounds is Martin Perna, a renown musician that has been a founding member of the famous big band Antibalas.
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From Wikipedia:Serj Tankian (Armenian: ???? ???????; born August 21, 1967) (Pronounced: S-air-jh Tahn-kee-ahn)[IPA] is an Armenian-American rock singer?songwriter, multi-instrumentalist, record producer, poet, and a political activist. He is best known as the lead vocalist, songwriter, keyboardist, and occasionally live rhythm guitarist of the Grammy Award-winning rock band, System of a Down.
In 2002, Tankian and Rage Against the Machine/Audioslave guitarist Tom Morello co-founded a non-profit political activist organization, Axis of Justice. During his musical career, he has released five albums with System of a Down, one with Arto Tunçboyac?yan (Serart), as well as his debut solo album Elect the Dead and a live orchestral version incorporating the Auckland philharmonic orchestra Elect the Dead Symphony. He is currently producing his second solo album, Imperfect Harmonies.