What an amazing concept! I love the idea and execution behind this, slowly assembling a band and hearing the instruments kicking in... Really feels great! And when you reunite everyone, and start defending their stands, like some sort of maestro! (Which also you're fencing against the non-talented filthy bats)
The only issue that I have with this game is that the colors could have worked well with some dedicated color palette and more contrast between some characters and the background. I had a really bad time finding the ant player because he blends with the background so easily and I have kind of a poor bad sight, so took me a while to recognize him.