I'm gonna give an English example, but in a tonal language like Hindi, Mandarin, Thai, it would make "more" sense. Players have to sign a song that starts with the same tone as the previous song ended on.The game starts with a couplet to initiate the game and since the last word of the couplet ends with an m, the first song starts with that. And yeah, only Indian/Bollywood songs are allowed but I'm gonna break that rule to make an example. Taking tones don't really make sense in English so I'll use the last word.
Player one might sing "Mamma mia, here I go again. My my, how can I resist you", and the next goes with "You are my sunshine, my only sunshine, You make me happy when skies are gray." and then the next starts with gray. The person who can't find a song is out of the game, and you can't repeat songs.