This sheet music starts as an accurate transcription of the original theme for accordion and then evolves into an original rearrangement with new chords and bassline and after that a new countermelody.
The piece starts beginner friendly and ends being very difficult since you have to manage two voices on the keyboard while playing many chords and a bassline on the bellows, but I guarantee it's very fun and rewarding to play once you learn it. I think it's a very good piece to measure how much you've grown as an accordionist to try to play at different stages of your development.
