Did this in about four hours today. First song I ever managed to complete in Fl Studio.
I was inspired by some of the cool, piano-driven backing tracks in the anime series Bakemonogatari, which often had strange time signatures that gave the music a very strange feel despite its simplicity.

I am rather proud of the breakbeat that starts to fade in at around 2:45ish. :)

This song is in 5/4 time.