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
Symphonia in the Latin countries more especially, to the hurdy-gurdy. "Symphonia" is applied by Praetorius to an instrument which he classed with the clavichord, spinet, regal and virginals, but without giving any clue to its distinctive characteristics. Symphonia Symphonia (Greek ) is a much-discussed word, applied at different times to the bagpipe, the drum, the hurdy-gurdy, and finally a kind of clavichord. The sixth of the musical instruments enumerated in Book of Daniel, (verses 5, 10 and 15), translated "dulcimer" in the 17th-century King James Bible; in all probability it refers to the bagpipe. The symphonia, signifying drum, is mentioned in