@@katiachicuta3606 This film is くちびるに歌を(kuchibiru ni uta wo). It means that give song to your lips. In reality, I think it is more poetic. Sorry I can't find good expressions.
I have heard that these kids practice insane hours. Get a bunch of kids from around the block, motivate them to work as a team, train the heck out of them, and letting them feel accomplishment. That’s education right there.