SCHLAGWERK HRS7 HARMONIC Hand Tubes

The tones of this hand tubes consist of the pure overtone series of the Venus tone at 442,4 Hz (corresponds approximately to a4). An overtone series is a series of partials that vibrate simultaneously when a natural tone sounds, thus appearing to us as a single tone. Such an overtone series is the purest, absolutely harmonic scale. It was not artificially developed by man, as with our well-tempered tuning, but the pitches result directly from the natural laws of vibration.