Incantation

[Zipporah Schumaker]

The act or process of using formulas sung or spoken,
with occult ceremonies, for the purpose of raising spirits, producing
enchantment, or affecting other magical results; enchantment.

[Couch Potatoe]

another word for a [chant] that is used when performing a [spell] or [ritual] of some kind

[Rihanna]

(the performance of) words that are believed to have a magical effect when spoken or sung:

[Sarah]

A series of words said as a magic spell or charm.