My guess is they'd play music in protected places, and also in bright sunshine -- I was going to say also in deep cold, but most instruments (as well as fingers) don't like that much, do they? They might well have gotten inventive about that over 90 years, though.
-- Jitter, I like that headcanon about the Sami! So well hidden that even Minna thinks they're not there. Maybe their numbers are coming up and they're thinking about coming out of hiding by around year 100, though?