Fun music puzzle. Definitely struggled when all pieces played at the same time so having the option to mute each channel was nice, although it would have been great to not have to pause and go through the menu. just a mute button on each channel would have been swell.
The interface was also very overwhelming at first while trying to play blind. I was also using gamepad. Some actions just were not very intuitive. Such as moving a tile. Once I have the tile selected, I would like to move it without having to reselect it. Clearer indicators as to when an action has finished would have been nice, such as finalizing a move or when you swap, the piece could auto play so you don't have to go through the hassle of trying to select the play button or remember shortcuts.
This was a fun time with some minor headaches, so overall great work and thanks for sharing your game!