Mr. Mergler, Beethoven, and Me by David Gutnick

Lovely book about a girl whose family moved China to Canada. They meet a kindly old man who recognizes the girl has a gift for music and offers to teach her for free. Beautifully written and illustrated. There is a page in the back dedicated to the real Mr Mergler who inspired this book.

Book Cover for Mr. Mergler, Beethoven, and Me. 
A girl sits at the piano with her hands on the keyboard. An elderly man stands by the piano watching her. A vase of flowers sits on the top of the piano. A music score fills in the background.