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
Vielle à roue et à manche The instrument has also been mislabeled "strohfiddel" in modern times, since the caption at the bottom of Plate XXII uses this term (literally "straw fiddle"), but that term actually refers to the xylophone pictured next to the dulcigurdy. Praetorius does not appear to give a specific name for the instrument, instead lumping it in with the keyed hurdy-gurdy next to it as "Bauern-Lyren" or "peasant lyres." Vielle à roue et à manche The vielle à roue et à manche (called dulcigurdy by some luthiers) is a modern term for an early music instrument, of unknown original name, of the hurdy-gurdy