This is an instrumental by Luis Plattner from the Austrian Volksmusik group Original Tiroler Echo. They are known for several hits (Die Sterne am Himmel, among others), and their quality sound utilises Oberkrainer rhythm and 2 accordions; diatonic button accordion (steirische harmonika) and piano accordion. The first time I heard them was on an old Musikantenstadl video tape as a kid, where they were playing Christlboarischer. Although the song’s main melody was originally played on steirische harmonika, my arrangement makes it a little easier to play some sections on piano accordion.
📝 Sheet music pdf (E♭ or F)