I was told by one of my rebbeim that jewish music is ais lassos (nowadays) but that one should understand that really its all assur.
@LAB where does the m”b say the issue is he will mix it into his nusach. additionally the bach and m”a and basically every other shita says that it is referring specifically to shirim of a”z (maybe even specifically shirim hamiyuchad lazeh).
Agav if any of the talmidei chachomim over here know what type of songs the girsa of the kol bo/biur hagra is referring to over there I would be grateful.