Last year, Zhang Pei Shan passed by a grand piano and told her parents she wanted to perform for a large audience.
And tomorrow, she will be doing just that - at a concert organised by the Beautiful Mind Charity (BMC) - in front of more than 500 people at the Singapore School of The Arts.
The concert is a platform for disabled students from the BMC to perform.
Pei Shan's musical abilities grabbed the attention of BMC in an audition two months ago, earning her a sponsorship for her music lessons.
"It is a miracle that she gets to fulfil her dreams and we are very proud of her," said her father, cabby Zhang Qi Kuang, 55.
Pei Shan, 15, suffers from MPS III, a rare disease that has robbed her of the ability to walk or breathe on her own, and severely stunts her growth.
When she was just four months old, she was hospitalised for stridor, a wheezing symptom that occurs as the opening between the vocal cords become narrower.
She was later diagnosed with MPS III.
"The doctors said they had no means of treating her. They only told us to wait for her condition to improve," said her mother Florence Chew.
Despite this, Pei Shan continues to persevere to improve her piano skills, which she picked up about seven years ago.
"She was motivated to play the piano when she saw a little toy piano," said Madam Chew.
Pei Shan's parents discovered her musical ability when she was seven-years-old, through a neighbour who is a certified music teacher.
"She taught Pei Shan for free because she was moved by her passion to learn the piano. She was surprised to find out that Pei Shan learnt pretty fast," said Madam Chew.
Pei Shan doesn't refer to her music scores when she plays.
"She is confident and plays from memory, and will also correct me when I instruct her wrongly," said Madam Chew, who learnt how to read music scores so that she can guide her daughter during practice.