Music files that are played on your computer's internal musical instrument digital interface (hence the abbreviation MIDI).
Feel free to take them, but give credit where credit is due.

NOTE:  It is highly recommended you download these (Right click -> Save As...) and play them using your own computer's MIDI -- the default QuickTime one sucks.

Dance Fever.mid - a hyper dance tune.  Listen for the part that sounds like a race car.
High Rider.mid - $5 to anyone who can guess the origination of the drumline.
Lakeside Serenity 2.mid - What?!  Second version and still incomplete?  But you can get the feel for it.  Terrible name, I know.
Seinfeld.mid - 'Nuff said.

Hopefully more to come soon :-)