Recently ComParser, a pseudo-scorefollowing program by Pieter Suurmond, has been ported to PureData. Pieter is not subscribed to this list, so I'm taking the freedom to give his software the publicity it deserves. You can find Comparser (and comparser~) at http://kmt.hku.nl/~pieter/SOFT/CMP/doc/cmp.html
greetings,