Upgrade Storage[Library Catalog (PICA):] Incorrect item type for sheet music
This volume of sheet music, http://gso.gbv.de/DB=2.1/PPNSET?PPN=815867379, and a number of other similar entries (to find these, search, e.g., for "Musikdruck" in this catalogue) is being imported as an "audio recording" though it's really a "book".
Also, "Nisle" should be the author, and "Vitalis" the editor rather than both appearing as "performer".
Also, "Nisle" should be the author, and "Vitalis" the editor rather than both appearing as "performer".