The film doesn’t tell their names. They are just “Guy” and “Girl” in the film. They met each other through music. This scene was when they played and sang together for the first time. The girl took the guy to the shop she worked for part-time and showed him the piano she had been dreaming for( also the one the guy bought her later on before he left). Then here came the beautiful song- Falling Slowly

Listen here: http://www.songtaste.com/song/148251/

I don’t know you
But I want you
All the more for that
Words fall through me
And always fool me
And I can’t react
And games that never amount
To more than they’re meant
Will play themselves out

Take this sinking boat and point it home
We’ve still got time
Raise your hopeful voice you have a choice
You’ve made it now

Falling slowly, eyes that know me
And I can’t go back
Moods that take me and erase me
And I’m painted black
You have suffered enough
And warred with yourself
It’s time that you won

Take this sinking boat and point it home
We’ve still got time
Raise your hopeful voice you had a choice
You’ve made it now
Falling slowly sing your melody
I’ll sing along