you know what to do...

this link tells about jamaican riddims

http://www.jamrid.com/Riddims.php

this one is midi files of riddims

http://baroquedub.co.uk/audio_riddims.php

midi files of traditional african rythms

http://groups.msn.com/MusicLibrary/africanmidifiles.msnw

this one is call and response wiki

http://en.wikipedia.org/wiki/Call_and_response_%28music%29#Leader.2FChorus_call_and_response

you know what to do...