It defines various packages of performers rights that the producer can acquire, according to how he/she foresees the programmes primary use, within the basic fee. Payment of the basic fee also gives the producer the musicians consent to the full range of secondary uses, subject to payments as and when such uses take place in the form of royalties.
It deals with payments for playing more than one instrument (doubling), for transporting large instruments to the studio (porterage), for appearing in costume, and for most other things that a musician might be required to do in addition to turning up and playing. It specifies rates for overtime, and for working hours or days that are regarded as unsocial.