Public Domain Works Database - Thoughts

Just blogging this for info really. Apparently there are issues with access to the BL's music database, for checking works copyright status. I don't know if we can legitimately use the Library Of Congress instead, but I believe their public SRU/W server includes their music collections. Hence this query can be used to identify works of Bob Dylan. Interestingly the AAAF (The LC Name Authority File) Seems to contain much richer alias and pseudonym data for artists than the composer list, and my sample matched 100% for the data we were trying to find. it may be that the LC server is a good additional resource for checking resource status. Of course having identified the works getting hold of them could be a different problem.