@BiggusDiccus @Humpleupagus @Xenophon @Zerglingman @charlie_root You can sometimes "feel" frequencies but not hear them eg sub-bass (20-70hz) and more commonly the headache-inducing 18-20KHz range. It's not really relevant for music, there isn't a single instrument on earth whose harmonics were designed to ring that high.

No, the waterphone isn't an instrument, it's a torture device.