Would grappling someone traditionally (with a free hand) end dueling dance?

[OgreEye]

dueling dance says it requires your other hand(s) to be free, would grabbing somebody technically violate that requirement? If so, would something like gnoll's crunch (jaws with grapple trait) be able to circumvent this issue?

[HammerJack]

Yes, a hand that's holding someone isn't a hand that's totally free.

Yes, your mouth is not your hand.