Indicates the composer for this work, i.e. the artist who wrote the music (not necessarily the lyrics).
entity0 cardinality: Many relationships (1)
entity1 cardinality: Few relationships (0)
Orderable direction: None (0)
The following attributes can be used with this relationship type:
This attribute describes if a particular role was considered normal or additional.
Use the start and end dates to indicate the earliest and latest known dates when the composer worked on this work.
Use the "additional" attribute if most of the work of composing is attributed to a different composer.
"The music" in the context of this advanced relationship should be interpreted as the creation of the sequence of notes used to make a tune. The lyrics are handled separately, by the lyricist relationship type.
Once a tune is written, it can be arranged or rearranged (including adding new notes), but this doesn't count as writing "the music"; instead, this is covered by the arranger relationship type.