One of my earliest childhood memory was me and my piano teacher showing me how to play Chopsticks on the piano. The day is still pretty lucid for me because it was my first time to ever see a grand piano.
I think I was around 8 years old that time and my piano teacher decided that we shall have our lessons at her home. I think she really wanted me to see a grand piano, after being so patient with our play piano at home.
If you don't know, Chopsticks or The Celebrated Chop Waltz is one of the simplest and most famous waltz for the piano. It was composed in 1877 by Euphemia Allen, also known as Arthur de Lull or Lulli.