He then smiles, opening a music book and prepares to take class.

In the classroom are more than 20 students, all with an accordion.

Their left hands fluently manipulate the bass button while their right hands press the black and white keys.

From Young Pines to Ah, goodbye to my friends, and from Shepherd Girl to February, they play the tracks with confidence.

It is hard to believe that these tracks are played by blind people.

They are so good that they have appeared on stage, and they have won many awards.