This relationship type belongs to the Engineer Relationship Class.
This links an entity to the artist who did the programming for electronic instruments used in the entity. In the most cases, the 'electronic instrument' is either a synthesizer or a drum machine.
- This indicates the date the engineer first worked on engineering the recording.
- This indicates the date the engineer last worked on engineering the recording.
- This indicates a minor or subsidiary role.
- This specifies the instrument which the artist programmed. Only the electronic instruments subset of the instrument tree should be used.