Sam Gellaitry - Assumptions (Cover) | Keylab 49 

All my ear was telling me was that the song is definitely in A major / F# minor, which based on seeing which notes he’s forming his chords from confirms that… although I do see that there is a Bb in there, which might be consistent with the A major blues scale as the “flattened 5th” note… also known as the “blues note”. That being pointed out, I would have never guessed that Bb was one of the notes being used. I want to do a cover of this, but all I have are 2 moog synths - one a monophonic and the other a duophonic. I could go MIDI using my moog model 16 application. But I haven’t really used MIDI that much to see how good it works, therefore, don’t know a whole lot about it The bass guitar, I can figure that one out by ear

Correction… upon watching a few more times, what at first looked like a Bb that was include was actually A. So this song really is the A major / F# minor pentatonic scale… which happens to be my favorite to work in. Everything sounds so dramatic in that key. D major / B minor as well