The idea of taking over the opponents notes is interesting, but I feel like it leads to an imbalance - the player that does well will do even better with access to more notes, making it hard to catch up for the other player.
The combo completely resetting on a miss is a bit brutal I think, maybe it should decrease instead.
The graphics were really solid and I love the chosen color palette.
The music was kinda putting me to sleep, maybe that's just my taste in music though 😅