I really love puzzle games like this one. Please continue this as I really enjoyed it. The visuals and audio are really good and the atmosphere is there. Now for the jam criteria
The first issue I found when playing this on browser was the lack of crosshair or something like that so I could press the piano keys more accurately; it really took me a long time just to play it right. Then, another is adherence to the theme. I don't know what part of the game shows the spin to win theme. Maybe the spin was the loop but it's not really a spin.
Overall, it was a fun game to play. Congrats!