Air instrument Air instrument In the context of musical performance, air instruments are imaginary musical instruments for which people mimic the sound-producing gestures in the air without touching a real instrument. In simple words air instruments are the musical instruments which could be played without touching the real instrument. Air instruments include: There are other air instruments as well. The playing of air instruments has been documented through the 20th century (see: Air guitar). However, no sources have been found that exclude the playing of air instruments in ancient times, during private performances, such as for air flute or air lyre (for
Geophone (musical instrument) Geophone (musical instrument) The geophone is a percussion instrument, invented by the French composer Olivier Messiaen for use in his large composition for piano and orchestra entitled "Des canyons aux étoiles…" ("From the canyons to the stars…"). It consists of a drum filled with thousands of small lead pellets, and is played by swirling it around slowly so that the noise of the pellets resembles the sound of dry shifting earth. Messiaen commissioned a Parisian instrument maker to construct one to his design, and he carried this instrument worldwide to early performances of the piece (which was given its first