This is an Abcedarian poem...

Abecedarian Poem
Each line builds with a successive letter in the alphabet. Also referred to as an alphabet poem.

All Hail the Mighty Queen,
Beautiful beyond knowing,
Compelling are her eyes,
Desire burning in the souls of men,
Evening star of the moonlit sky,
Fatal be her bite,
Glorious her name:
Harlot of the Night.