I really like this! I can see this being a bit of a zen version of Tempest. If you ever revisit this, I think it would be really cool to have the enemies sync up with the music. I think this is a really cool concept!

The game got easy after a while, but i was hesitant to leave the game. good job!

This was fun! I think there's some tinkering to do with difficulty scaling, I didn't feel like there was much of a play-fail-improve loop once the player gets a basic handle on the controls and flow. But, I did lose track of time while playing, which means it's doing good things!