Holiday Puzzler

If you like puzzles, here's a holiday puzzle that was put out by a group of trombonists from Sweden. There's a Swedish-language intro. Then, as near as I can make out, the group performs a medley of well-known (?) operatic melodies, interspersed with Nordic Christmas carols. The challenge is to name all the melodies -- and they go by pretty quickly. The English caption says there are 20; I could not name that many. (Sorry, no prizes.)

But if you're not a puzzle person, check it out anyhow; you'll hear some terrific brass playing.