Special body markings found on all Wuthering Waves Resonators and throughout SOL3 (the game's world). All Resonators can channel power through their Tacet Mark to exhibit a power called a Forte. The release design of Tacet Marks resemble a sound wave diagram in line with the game's focus on sound-related themes, whereas its original design looked closer to a stretched-out star.
Note that Tacet Marks can vary in their activation state, appearance and location on a character's body but keep the same basic structure. Visit each character's individual wiki for more information on where to find their specific Tacet Marks.
Note: Shorekeeper sets a precedent where some playable resonators may not have a Tacet Mark. Only tag Tacet mark on characters that show the current design or confirm with the character tag wiki for information on the location, if applicable, of a Tacet Mark.