Should I make this song longer?

[Qwertygiy]

I mean when the song is done, will it play again?

Erm... I think that depends on your music player It'll have a distinct ending, like it does now, but it'll loop nicely.

@Chaos

It has some bass -- in the beat and the second instrument. It might seem quiet if you don't have on headphones because I had to tune it down a bit or it would be all blaring.