I'm only familiar with ocarinas, but if both ends are closed and you only have finger holes in it, then it's a Helmholtz resonator and thus a vessel flute. Vessel flutes typically have a neck (it's the air motion in the neck that produces the resonance as it acts like a mass on a spring), though I don't think they need to have one, if the instrument itself is already a pipe.s1m0n wrote:To be most precise, we'e hoping to understand the difference between an ocarina and a closed-end overtone flute. Where does the distinction lie betwixt this and an ocarina?
There are examples of flute like "ocarinas", like the instruments of MountainsOcarina
Or the gemshorn:
But the most telling thing is the sound. All ocarinas of the same volume basically sound the same. A tenor gemshorn sounds just like a tenor sweet potato ocarina, simply because vessel flutes produce only one note. Once you know the sound well, you can usually tell if you're listening to an ocarina or not.