Hellow guys, Welcome to my website, and you are watching Gravity Falls - Intro【Opening, OST, Theme Song】Piano Tutorial (Sheet Music + midi) Synthesia cover. and this vIdeo is uploaded by MIDIes Mus at 2020-01-19T09:00:02-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.