This was really fun to play. I didn't know what I was doing initially but eventually picked it up but awesome overall

The game is polish and is a really good game. All the setup from the card system and the dynamic music makes the game great in his presentation

One problem that I come up was the fade to black of the cards one or two times. I had to restart the game so I can continue to play.

An suggestion I like to make is to add a card effect that heals the player. 

I especially like the music in this, it fits so well! Overall great work!

I'd love to see this turned into a full game, it definitely has potential, and I love the idea of a musical card battler. The dynamic background music is also amazing.

Good work.

I like the design of your card game! And the music is also very good.

Also I found interesting that you interpreted the "scale" of the theme as the music scale, pretty creative!