[mercator1]

The filenames don't lend themselves to being filtered, but I was able to sort the songs in the setlist screen, and sort on the Collection column. This at least got me to the 100 songs I needed to work from for each instrument, but when you do that, there is no secondary sorting, so the filenames seem to be in random order within Collection. Still makes it more work than it seems it should be. Got it done, though. Thanks for help.