Ingest the Renaissance Liturgical Imprints (RELICS) database #453
Description
https://quod.lib.umich.edu/r/relics/
The site was last updated between 2007 and 2014. It also says there's a separate offline version that has more data, but we need to reach out to them for access, which I will do.
Additionally, the home page says it is possible to search for results that only contain music, but it does not appear to be possible through the Advanced Search tool on the website.