Did the crystal ponies play harmonica along with their crystal flugelhorn? We might never know (at least not until that episode airs!), but we can at least pretend that they are harmonica fans.
Site contributor miskov shared a very well-done harmonica tab. If you have a C-harp, you should definitely take a look! Before you know it, you can be playing along to this charming melody.
Candy Coda mentioned that he worked on some other harmonica tab. Are folks out there interested in seeing more harmonica resources? Let us know!