Just a Brain fart

I like the idea, that when I see a stranger on the train or tram, or walking down the street past me, when I see that they have their headphones in, that they are singing inside their head. There is music; melody's, cords, harmony's, lyrics, beats, and notes flying around in their heads. They could be sitting in a suit, staring at the ticket machine, or waiting for the lights, in silence, completely still, yet, they could be belting it out inside their head. And I'll never know. I'll never know what to.. or if they know all the lyrics to 1000 miles or Sail away by Enya and can recite them word for word. I wonder...