Each letter is a key on the on-screen piano below. Lowercase letters are white keys, capital letters are black keys. Open the piano and press them in order — no sheet music needed.
E D C D E E E · D D D · E G G · E D C D E E E E · D D E D CMary Had a Little Lamb is the classic stepwise exercise: nearly every note moves to a neighbour one key away. That makes it the ideal song for breaking a beginner habit — reaching for keys with the eyes instead of letting the fingers walk. It is also one of the few beginner tunes that changes direction mid-phrase, which trains your hand to relax.
u y t y u u u, then y y y, then u o o, then u y t y u u u u and y y u y t. Every note is a white key in C major.
Stepwise motion. Almost every note is next to the previous one, so you learn to feel the distance between neighbouring keys instead of looking down.