When I was a child—probably around seven years old—I began learning the piano at an academy. There, I was introduced to simplified versions of famous pieces from around the world, learning basic notes like do, re, mi. One day, I learned about sharps for the first time and tried playing a melody. The sequence of notes was as follows: Mi Mi Fa Sol / Sol Fa Mi Re / Do Do Re Mi / Mi Re Re Mi Mi Fa Sol / Sol Fa Mi Re / Do Do Re Mi / Re Do Do Re Re Mi Do / Re Fa Mi Do / Re Fa Mi Re