Kalotaszeg is a region of Transylvania, a previously Hungarian area, so the population is mostly of Hungarian descent, and very much hold on to their old traditions. A Sapora is a traditional dance, and part of  the Hungarian-style Tanchaz repertoire. This version is for Bb instruments (Bb clarinet, soprano and tenor sax…), the chords are for C instruments, suitable for accompaniment by a guitar, accordion or similar.
 
Listen here: https://youtu.be/Q--XQJbbO-M