Upload the images we got from Musikverket.
It's about 20 files with no machine-readable metadata. but some of them are associated with the same audio file (scans of multi-page documents).
They can be uploaded manually with simple descriptions and then updated if we get any more detailed info.
The more important thing is including links from the images to the corresponding audio files, and the other way round, so that it's easy to understand they're part of the same context.