swoop

(music) rapid sliding up or down the musical scale.

“the violinist was indulgent with his swoops and slides”

A swift descent through the air.

A very rapid raid.

Seize or catch with a swooping motion.

Move down on as if in an attack.

“The raptor swooped down on its prey”

“The teacher swooped down upon the new students”

Move with a sweep, or in a swooping arc.