The Sweetest Sound by Scott Cram

The Sweetest Sound involves the spectator at every step of the way. A card is freely chosen, and lost in the center of the deck. The spectator then cuts down into the center of the deck themselves, and their name (which you don't know until this point in the trick!) is used to eliminate all but one card, which proves to be the spectator's chosen card!

FAQ
Does this effect require a full deck? No.

Manufacturer Says
This trick is powerful and completely impromptu.