Meet the "Hunting Horn" from Capcom's "Monster Hunter" franchise.
While the source video games undoubtedly take liberties, the idea of a large, handheld instrument that plays various tones by physically swinging the device does not seem immediately improbable. (A fair number of hunting horns from the games incorporate standard instruments such as bagpipes or guitars. For this question I'd like to focus on those archetypes that lack such secondary instrumentation)
Other aspects of the concept (such as use as a practical blunt weapon, or supernatural song-powered enhancements) are ancillary in my case; I'm primarily concerned with the feasibility of using physical movement to create tones, rather than traditional methods of sound creation such as blowing air, plucking strings, or percussion.
Are there any real world instruments that are played by moving the instrument?
If not, what considerations would factor into the shaping or utility of such a device? How might one form multiple tones from a single horn? (The games traditionally have precisely three each)