Sorry about the music, it usually works fine in the editor but it's quite unpredictable in the build.
As for the art, I personally don't think it makes sense to judge a game with an art style as simple as mine on the quality of its art. Instead, I think it should be judged on how well it fits the other aspects of the game, such as the music and the gameplay.
Nonetheless, I'm thankful for the feedback, and I'll try to make sure that the music works consistently in my next project.