Tune : TWINKLE, TWINKLE, LITTLE STAR (slightly modified)

A B C D E F G, H I J K L-M-N-O P,
L-M-N-O P Q R S T, U V W X Y Z
Now I've said my ABC's;
Ha ha, ha ha, ha ha, sneeze!

"L-M-N-O" is pronounced as if it were a single word, or perhaps a name "Ella Mennow". I'm not sure if I learned this song before I learned the alphabet.

La Alfabeta Kanto (The Alphabet Song in Esperanto)