crystal glasses

Germany, United Kingdom, Ireland, Austria, United States a friction-based musical instrument where the rims of crystal glasses are rubbed with moistened fingers to produce pure, shimmering tones through high-frequency vibrations, used in solo recitals, experimental soundtracks, and delicate arrangements of classical melodies.
crystal singing bowls

United States, China, Germany, United Kingdom, Australia, Japan modern friction-based percussion instruments made from high-purity quartz silica that produce powerful, sustained harmonic tones when struck or rubbed with a mallet, used in sound healing, meditation, and New Age ambient music.
glass armonica

United States, United Kingdom, Germany, Austria, France a series of nesting glass bowls rotating on a horizontal spindle that produces ringing tones through friction when touched by the player's wet fingers, used in classical chamber music, opera, and film scores. Invented by Benjamin Franklin in 1761.
musical saw

United States, United Kingdom, Germany, France, Russia a hand-bent metal blade played with a bow, used in folk, experimental, and atmospheric film music.
tibetan singing bowls

Tibet, Nepal, India, Bhutan bowl-shaped, bell-like instruments that produce sustained, harmonic vibrations when struck or rubbed with a mallet, used in sound therapy, meditation, and spiritual ceremonies to promote relaxation and mindfulness.

waterphone
United States, Worldwide a modern, acoustic idiophone made of a stainless steel resonator bowl containing water and surrounded by bronze rods, played by bowing or striking the rods while tilting the instrument to use the shifting water to create unsettling, pitch-bending sounds, used in film scores, particularly horror film scores.
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