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
Hurdy Gurdy Man the band Hurdy Gurdy (which included Donovan's old friend and guitar mentor Mac MacLeod) with Donovan intending to be the producer, but the collaboration was cancelled due to creative disagreements, leading Donovan to record the song himself. In the chapter dedicated to the song in Donovan's autobiography, he says that he originally wanted it to be recorded by Jimi Hendrix. There is some dispute over the musicians who performed on the song. In the booklet that came with Donovan's 1992 double CD, "", Allan Holdsworth and Jimmy Page are listed as the electric guitar players and John Bonham and Clem