A friend of mine asked for finds of medieval bone Flutes recently. I started searching a bit, but literature is scarce. To be more precise, we are looking for Central Europe, and specifically for Post Roman, Early Medieval ones. I am aware of the published finds from Müstair in Switzerland by Stefanie Osimitz. But often the litarature I found is concentrating on the older finds.
So, I want to ask my fellows here if they are aware of more published finds of that time we could dig into?
There are pitifully few existing medieval instruments. But I know at least partial remains of simple ones, like whistles and flutes, have been found in archaeological digs. There is an organization for musical instrument collections in museums, CIMCIM . One of their missions has been to get antiques out of the hands of players and into conservation, and so to do that they have encouraged their member museums to document them and make drawings, so builders can make good reproductions- and they make those drawings available. Doubt they've anything as early as you'd like, but if they're made a drawing it's got a lot of data. The index is: https://cimcim.mini.icom.museum/resources/musical-instruments-technical-drawings-register/technical-drawings-all/#
Some ( but not all) of the Galpin Society Journals are over on JSTOR: https://www.jstor.org/action/doBasicSearch?Query=galpin&so=rel
The American Musical Instrument Society journals are available on ProQuest, but they also have posted an online index of past articles: https://www.amis.org/journal-indexes
You might also try going to the websites of some of the big collections that are members of CIMCIM, like the Cité de la Musique in Paris, or the Musical Instruments Museum in Brussels, as often their collections are searchable online. There has been an effort to link collections in Europe, too, so a single search can be done over a number of collections: https://www.mim.be/en/search-collections-online