An old woman comes up to him, hunched and small and smiling. "Would you like to dance?" She is desperate woman. You get them also in Prague station. If he wasn't also desperate Vaclav would give her money. But Vaclav can only afford one meal a day.
The old woman starts to sing and someone else says to all join. Then a young man starts to dance with her. Ah! This is why Vaclav dreamed for years of coming to London.
Vaclav pulls out his puppet of John Lennon dressed as Sgt. Pepper. He makes Lennon totter and starts to sing... "Pah, pah, pah...."
That is not a Beatle song he is singing. He has to think. It's Papagino from The Magic Flute. That is no copyright. Vaclav's pitch changes.
A puppet The Magic Flute starring the Beatles and Charlie Chaplin?
Car 7 map