It's interesting to go back and watch this interview with Tavis from 1998.

A lot of the concepts for the marketing of the Musicology CD were in place here.

It explains how lucrative it is using the methods Prince uses and it shows that he has a great deal of forethought.

He politely chided Jimmy and Terry for giving a caller advice on contracts but not informing the caller that they should seek to retain ownership of their work.