This is a cool idea but it's just a bit too reliant on RNG for my taste. There's not a lot you can do to make sure you can continue the scale if you don't get the right cards. But the idea of continuing the scale is really cool. Especially with the dynamic music. Makes it feel like a climactic card duel between musicians. I really wish I could've gotten more than 3 cards in a row just to hear the music.
Overall, cool game!