Reddit reviews Master Solos Intermediate Level - Clarinet: Book/Online Audio

When I was around your age I played a clarinet piece for a solo ensemble called Andante by Alexandre Beon. It has a beautiful melody that haunts me to this day.

I did a search and found a video of a kid (not me) playing it. The piece can be played with a lot more feeling than he does it, but that gives you an idea. The only technically challenging part is the solo at the end, and most of that is slurred.

The sheet music is available in this book.