I put 'owner', 'enhanced cd' & 'turntablism related' in the custom fields...but that's only for my specialized needs.

It's NOT only classical music cataloguing that needs credits. As soon as you start getting interested in which producer, musician and singer did what, you have to be able to track it down somehow.

Yesterday, for instance, I rediscovered that Adrian Belew plays guitar on Jean Michel Jarre's Zoolook Those small things in life ;D