Incredibly polished visuals!
It was fun scrolling to the beat with the mouse hand and hitting "A" on the other.
btw I thought the "A" was just another bind for starting the song since I have a controller plugged in. Caused a little confusion since it doesn't look like a keyboard "A" but an controller "A".
I appreciate the leniency in hitting the notes. For a jam game that's played in a browser it's better to be very generous with that!
I think scrolling might get a bit tiring if there was more than 1 song. That's my only complaint game idea wise.
Nice music, enjoyable gameplay, great job!