do it yourself! this is what you need: (play all three at the same time in separate windows, duh)
http://www.mediafire.com/?fninv05lk78au3p (put this on repeat)
http://endlessvideo.com/watch?v=QspuCt1FM9M (part the loop between 3:42 and 3:44)
http://www.bgfl.org/custom/resources_ftp/client_ftp/ks2/music/piano/ (click drum beat 3)
This is the most entrancing remarkable thing ever! You can make music using the internet so easily. holy shit. here's a screenshot so you know you're doing it right!!