String instrument strings, or play them by rolling the bell of a brass instrument such as a trombone on the array of strings. However, these are relatively rarely used special techniques. Other keyed string instruments, small enough for a strolling musician to play, include the plucked autoharp, the bowed nyckelharpa, and the hurdy-gurdy, which is played by cranking a rosined wheel. Steel-stringed instruments (such as the guitar, bass, violin, etc.) can be played using a magnetic field. An E-Bow is a small hand-held battery-powered device that magnetically excites the strings of an electric string instrument to provide a sustained, singing tone reminiscent
Kaisatsuko Kaisatsuko The kaisatsuko (Japanese: 回擦胡, literally "wheel-bowed fiddle") is a mechanical experimental musical instrument invented by Yuichi Onoue of Tokyo, Japan. The instrument consists of two strings on a fretless neck. A crank is affixed to a small nylon wheel mounted on the body. The player turns the crank, causing the wheel to spin and "bow" the strings. This concept is similar to that employed by the hurdy-gurdy. Unlike most hurdy-gurdies, Onoue's instrument has no keybox, but is fingered along the neck. This detail is similar to the dulcigurdy, a hurdy-gurdy variant recorded by Michael Praetorius. Besides the Kaisatsuko Onoue