What is the origin of this classic melody for the popular Purim song "Chayav Inish Lebasumei"?
According to Jewish Music Toronto's video (here), it comes from the Hungarian Folk song Szép Asszonynak Kurizálok. As an aside, it is also the source of a popular Romanian song (youtube search link, but many of the results may include Kol Isha).
H/t to @EliGreen.
Edit: Thanks to Oliver for this link, as at it, a commenter notes:
My neighbor, R' Yaakov Koppel Reinitz, takes credit for adapting the tune of "Dama Mama Dupa Ghirui" (a gypsy song that he knew from his youth in Hungary) to the words "חייב איניש לבסומי..." He says that he taught it to his talmidim in Yeshivat Kefar haRoeh (in the 1950s or 1960s), and it took off from there.
If this is the case, it seems that the popular Romanian song (Dama Mama Dupa Ghirui) is actually the source, not Szép Asszonynak Kurizálok. Who knew?