Communicating composite musical works in MWN 1.3
In MWN 1.3, the right shares (and therefore the right share percentages) pertaining to a work apply to the complete work so if a work consists of several parts, i.e. its MusicalWorkType is CompositeMusicalWork, the right shares are specified for the entire work and may have to be derived from percentages of the right shares of the component works. Examples for such composite works are mashups.
Obviously, such “flattening” of a composite work is only possible if the weights of the individual parts are known.
If a work cannot be flattened because the weights are not known, or if such a flattening is not wanted, the individual parts must be communicated as distinct works. They can then be related to the composite work using MusicalWork/MusicalWorkReferenceList/MusicalWorkReference (e.g. with a WorkRelationshipType value of Contains) and the right shares (and their percentages) can be communicated for each of them.
Example: A mashup that is an overlaying of four musical works or excerpts from musical works.
Mashup | Rights Controller | Percentage |
|---|---|---|
Work 1 (30% of the mashup) | Party 1 | 100% |
Work 2 (20%) | Party 2 | 100% |
Work 3 (25%) | Party1 | 100% |
Work 4 (25%) | Party2 | 100% |
The flattening would lead to the following right shares:
Mashup | Rights Controller | Percentage |
|---|---|---|
Right share 1 | Party 1 | 55% |
Right share 2 | Party 2 | 45% |
Usually, this would be communicated in an MWN message as a single work with two right shares of 55% for party 1 and 45% for party 2. But it could also be communicated as a set of five works (the mashup and its four components), with an unknown right share percentage for the mashup.