I like the walk of this one.

This is pretty flippin' sweet.

Yay for IT214 compression :D
Probably the first I've seen here which uses it.

Just a hint: If you have sample global volumes less than 64, drop the amplitude to scale and raise the global volumes back up to 64 before you give it the IT214 treatment.
Oh, and another one: It's better to do, e.g. I33 I33 instead of I33 I00 - you'll usually save a byte or more. This is probably the simplest .it pattern squeezing trick you can do (after a big SBx treatment, of course). Same applies for voleffects.
One more: If you have a bunch of drums, it's better to do them in separate channels.

Take a look at ITTECH.TXT

- notably "Impulse Pattern Format" - if you want to work some other tricks out.

EDIT: One OTHER note. IT saves timestamp logs in its files. I advise that you resave in something that isn't IT (and I don't think Schism after some hg revision is safe to do this anymore), THEN resave in IT. You'll still have the extra timestamp though, so if you know what you're looking for (it's not mentioned in ITTECH.TXT) then you can save 6 bytes.

Thanks for your tips iamgreaser! I'm aware of most of the tricks you described but this tune was derived from a 85kb original. Hence I only did enough to get it down to the desired size :). Most of it was cutting down on the samples. Would I have set out to make a 4k from the beginning, I would've done a lot of things differently indeed.

Swiiiiiing it...! *bobs*

very nice for 4kb

Another cute one, good job!