slominer,
“Q – Shelo asani goy I can understand as Jewish pride, but why sing shelo asani isha as a song? A – the motivation [for singing would be the same motivation as] when saying the brocho itself and appreciating the reason Chazal instituted it”
Nah – we say the bracha because chazal instituted it. No more, no less. They didn’t tell us to make a song of it with microphones, guitars, drum-sets and whatnot. Do you break out the bongo-drums and sing hamotzi lechem min haaretz? Making a song out of a bracha comes from a motivation that we cannot pin on chazal. And again, I can understand the motivation behind the shelo asani goy song. We are in golus, surrounded by a non-Jewish culture that has veered between hostility and assimilating. I can even see a reason for a bongo-drum hamotzi, e.g., chinuch for a young child. I have yet to see a cogent reason for making one from shelo asani isha.