Purple Tendrils
Instinctively, Anastasia's voice soared from her lips and came out in soft notes of music in the form of purple tendrils, the color of hydrangea. The notes hit against the entranced dancers and there was a crackle. She backed up a little, as the darkness around them started to wriggle, trying to resist the magic of the music, but it still clung to them.
But Anastasia didn't stop, not even once doubting that she could sing her magic out, and that her song would carry the magic she intended. Notes continued to come out of her throat in purple tendrils. She closed her eyes and stroked her emotions for the right notes, for the right magic.