Serj Tankian – Gate 21 cover Jun 12, 2015 Cover, Cover Alternative, Cover Gate 21, Cover Serj Tankian, Imperfect Harmonies (Deluxe Limited Edition), piano duett version. Like 0 Thanks! You've already liked this « Serj Tankian – Invisible Love – Deserving? (Electro Remix) – Guitar Electric Cover » Forget me knot piano cover (Serj Tankian)