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.
C C G G A A G · F F E E D D C · G G F F E E DThe ABC song shares its tune with Twinkle Twinkle, which is exactly why it makes a great second exercise. Teachers use the same fingers for a different purpose: the letters A to Z are sung in a slightly different rhythm, so you practise keeping time while the notes stay familiar. If you can play one, you can already play the other.
The melody is identical in the traditional version; only the rhythm of a few notes and the lyrics differ. Learning one gives you the other almost for free.
Use s s h h j j h for A-B-C-D-E-F-G, then g g f f d d s for H-I-J-K-L-M-N-O-P, and h h g g f f d for the ending phrase.