I am going waaaay out on limb here, but i would rather spend my energy learning how to use bioperl instead of debugging a hand rolled parser. Check out their excellent tutorial if have not already. We can still help you with this problem, but please provide some sample data for us to work with.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)