"The Indiana University Veriations2 and Variations3 projects use a work-based metadata model for discovery of musical sound recordings, scanned score images, and encoded score notation files. This model has been described as ³FRBR-like² and is mentioned in various discussions of FRBR-based systems, but it is not technically a FRBR implementation.

As the project team investigates long-term sustainability issues for the Variations3 software, we have begun thinking about what a truly FRBR-ized version of the metadata model would look like, and if changing to this type of model would make our system more sustainable and interoperable. As a first step towards answering these questions, members of the Variations3 project team have released a report outlining the potential application of FRBR to a system designed to deliver musical content in a library environment."