Lyrics of Alphaquest

A black girl runs up and down a hallway filled with doors.
The animated effect on the doors has letters floating behind them all.
On the last line, she finds a door with one letter on it, reads it and then opens it to begin her latest adventure.
Short and sweet but i've had a lot of requests for it.)

Doorways up and down the hall
Wonder what's behind them all?
Doors that lead to anywhere
Got to a, b, c what's there
Got to a, b, c, decide
Where's the door i haven't tried?
A, b, c, d, east and west
Going on an alphaquest!