You can now enjoy the Bass Invaders soundtrack without having to worry about fighting off an invasion.
You can get the soundtrack as a standalone purchase or in a discounted game bundle. If you already own the game the bundle discount should get automatically applied.
https://store.steampowered.com/app/2891530/Bass_Invaders_Soundtrack/
https://store.steampowered.com/bundle/39727/Bass_Invaders__Soundtrack_Bundle/