Flavor is free, so you flavor it however you like. The characters cast a series of quick spells to make the verbal components, you draw out in the sky the language of magic, etc etc.
The only way this is a problem is if you expect to be able to cast in a silence spell, subtle cast, or whatever because your mute.
Also by rules
"Verbal (V)
A Verbal component is the chanting of esoteric words that sound like nonsense to the uninitiated. The words must be uttered in a normal speaking voice. The words themselves aren’t the source of the spell’s power; rather, the particular combination of sounds, with specific pitch and resonance, sets the threads of magic in motion. Thus, a creature who is gagged or in an area of magical silence can’t cast a spell with a Verbal component."
Must be spoken but as I said flavor is free. So I wouldn't mind provided you don't try to make it be something more then flavor.
Hope this helps.