Notice my mistakes sound like it does when you're performing REAL music. because you ARE. there are no canned mistake squonks, it just sounds out of tune and/or out of time.
no extra controllers necessary to own or buy.
you play every real note that exists. yet every note is easy to press without moving your hand position.
i take advantage of the fact that a C# matches perfectly with the music, no matter what octave you play it in. that's why there only needs to be so few note lanes to cover every note, because the right octave is handled for you. altho you can optionally move up or down in octaves.
once you learn to play well within one octave, it is fairly trivial go up and down octaves.
This is a hard song. Don't worry there are easy songs, and songs where you don't have to play chords. :) Being played here with a standard text input USB keyboard.