Certain phrases recur in multiple songs. This suggests some interesting games to play.
For example, given a particular phrase, can you find all of the songs where it appears? Or, in a variation on this, given two songs, can you find the phrase they have in common?
For example, what phrase is found in both the song “Famous Blue Raincoat” by Leonard Cohen, and the song “Still Crazy After All These Years” by Paul Simon?
I think you get the idea.