Also, IT has a channel volume effect, which could've cut down on file size further. :D
This is a pretty neat little catchy tune I made :) I had a lot of fun reducing it from 44 kb down to the specified 24 kb haha. In doing so though, the percussion got really crappy but overall I think this turned out okay.
Oh, I know normally my tunes are .xm but this is an .it because converting it to .it shaved off 4 kb off the file yay :3