Voice of Sirenix

Voice of Sirenix is Musa's Sirenix power which allows her to use her singing voice as a sonar that can break dark spells and communicate with sea creatures; or it can also be a beam of sound waves against the enemy.

Times When Used

 * Season 5 Episode 20 - Used to free the Singing Whales from Darcy and Stormy's control.
 * The Mystery of the Abyss - Used against the mutants but failed.
 * Season 6 Episode 1 - Used along with Light of Sirenix and Fire of Sirenix against the Beast of the Depths.

Trivia

 * This spell is very similar to Crystal Voice as they both are solely dependent on Musa's voice and she sang a specific song when using both spells for the first time.
 * Return to Me was sung when using Voice of Sirenix while We Are a Symphony was sung when using Crystal Voice.