Music resources - Calvin Institute of Christian Worship

The Calvin Institute of Christian Worship website at Calvin College has a very good directory of music links and resources mostly, but by no means all, from a Reformed perspective. 

Included:

Copyright Help
Guide to Copyright Information 
from the Church Music Publishers Association 
How to Copyright Right
from Reformed Worship magazine
Thou Shall Not Steal
from Reformed Worship magazine

But there's a lot more.