Allegretto – adding 1

1 + 1 = 2 ; 2 + 1 = 3 ; 3 + 1 = 4 ; 4 + 1 = 5
5 + 1 = 6 ; 6 + 1 = 7 ; 7 + 1 = 8 ; and we’re straight.
8 + 1 = 9 ; 9 + 1 = 10 ; 10 + 1’s E-LE-VEN + a 12 is 13.
Math is fun; adding 1; 2, 3, 4; 5 and 6 ; se-ven, 8 ; 9 and 10 start a-gain.