Do You Ever Sing a Song in Your Head?

Every time a baby is born, there seems to be another verse in the song. A story recently on whales that when a human started to hunt whales in the north atlantic, the amount of whales that started to get caught, over time disappeared. And the researchers believe that they're singing their history. I don't worry about forgetting it, because it's a bit like ordinary memory. Like, i've never took photos in my life because i figure my brain will remember what i want to remember. Do you do anything like freak out that you might forget it if a good melody or a good lyric or a theme comes in? Yes, absolutely. It is always it will come back