Glass harmonica

Glass Harmonica This is a relatively rare musical instrument. Hemispheres of different sizes are used for its production. These glass objects are strung on a metal axis. Typically, the axis is oriented horizontally and is expected to rotate efficiently. The assembly of hemispheres is partially placed in a resonance cabinet where diluted acetic acid is poured.

Of course, striking the glass container itself had been used in music for centuries before the invention of the glass accordion. However, the use of friction to generate sounds turned out to be an absolute innovation. The main capabilities of the instrument are related to the fact that the playing technique is close to the method used on the keyboard. In addition, it was possible to develop a real keyboard version, where the presses set in motion a special mechanism connected to the sound boxes. Chromatic tuning is typical for glass harmonics and its range covers 2.5 - 4 octaves in different models.

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