There's a line that says, "Whoever plays a piece of wandering sadness..." What song is it?

First of all, let's correct the lyrics, the correct lyrics are "Whoever plays a piece of a piece of wandering sadness" from the song "Prague Square".

Chinese name: Prague square

Foreign name: Prague square

Album: Look at Me 72 Changes

Song duration: 04:53

Release time: October 2004

Songs sung by: Jolin Tsai, Jay Chou

Lyrics: Fong Wen-shan

Songs composed by: Zhou Wen-shan

Songs sung by: Jay Chou, Jay Chou

Songs sung by: Jay Chou, Jay Chou

Songs composed by: Zhou Wen-shan

Composition: Jay Chou

Arrangement: Hing-Min Chung

Music Style: Chou's, RAP

Song Language: Mandarin

Produced by Jay Chou

Lyrics

Prague Square

The piano keys are filled with light

The stained glass windows

decorated with Gothic churches

Whoever plays a piece

A piece of wandering sorrow

Following the sound of the piano, I see

Roses clinging to eighteenth-century oil paintings

Side-by-side, quietly admiring them

Thinking about your romance

Looking to see if it will be the same for a long time

A a fu shou a a a fu shou

yap so so sorry so so so so

Moderato Andantino

Portmento Fortissimo

The Thief He Steals, The Friar Says No

I woke up from a dream, and there was nothing

I stood in Prague's square at dusk.

Casting my hopes in the wishing fountain

The doves with their backs to the setting sun

It's too beautiful to look at

Prague's squares, the deserted corridors

I'm dancing and twirling all by myself

Not far from here, you're singing from afar

You really can't get used to being without me

The light that shines through, the stained-glass windows

Decorated with a Gothic church

Whoever plays a piece of music

A piece of wandering sorrow

Following the direction of the piano, I see

Roses clinging to an eighteenth-century painting

Side-by-side, quietly admiring the scene

Thinking of your romance

Looking to see if it'll be the same for a long time

Aa fu shou a a fu shou

A fu shou a a fu shou

A fu shou a fu shou

A fu shou a fu shou

yap so so sorry so so so

Moderato Andantino

Portmento Fortissimo

The Thief He Stole It, The Monk Said No

I woke up from a dream, and I had nothing

I stood there in the Prague twilight. I stood in Prague's twilight square

Casting my hopes in the wishing fountain

The doves with their backs to the setting sun

It was too beautiful to look at

Prague's square with its deserted corridors

I was dancing and twirling by myself

Not far away you were singing from afar

You'd never have learned without me

It's a dream that's been woken up.

In Prague at dusk in the square

Casting hopes in the wishing fountain

The flock of pigeons with their backs to the setting sun

The image was too beautiful to look at

Prague's crowded theater in the square

A café in a quiet alley

I'm at the checkout and you're making bisque

This is the answer to the story in the end

It is the answer to the story in the end.