When I have an instrument such as "quartertone bass flute", the prod autocomplete rightly tries to give me a result, and provides "bass flute" as the first option, which I can select and then specify "quartertone bass flute" as the credit. The Autocomplete2 option on beta though gives me zero results, which means I have to guess that removing "quartertone" and searching again is the way to go (I mostly know our instrument list so I can do that, but not everyone does).