Identifying a folk music(?) piece

Hello everybody,

a little story: Behind my apartment block there's a big meadow which is often used for celebrations like birthdays. One day, several years ago, a group of people celebrated there, and they had a speaker which played annoyingly loud music. But between the horrible pieces there was one piec, which I found very fascinating!

It was a folk music-like piece for flute and an accompanying accordeon. Thanks to my relatively good hearing, I could write down the notes of the flute's main theme. The piece was in Rondo form and was in A Major. It had some quirky notes in between, and I'm not quite sure if I caught them right but I attached a midi and a PDF of the music.

Thank you for your help!