It would be really cool if you used procedural generation on the music
heres a link to someone who made a procedural music generator.
Yes I already had the idea, it's not really that difficult to do, but I preferred to make the "perfect" track I wanted to match what is on screen.
And if we want to go further, we can procedurally generate absolutely everything, from peoples, to ships, and background, but as a developer you need to mark a stop somewhere in the procgen madness !