Hurdy-gurdy Hurdy-gurdy The hurdy-gurdy is a stringed instrument that produces sound by a hand crank-turned, rosined wheel rubbing against the strings. The wheel functions much like a violin bow, and single notes played on the instrument sound similar to those of a violin. Melodies are played on a keyboard that presses "tangents"—small wedges, typically made of wood—against one or more of the strings to change their pitch. Like most other acoustic stringed instruments, it has a sound board and hollow cavity to make the vibration of the strings audible. Most hurdy-gurdies have multiple drone strings, which give a constant pitch accompaniment
Early Music (Lachrymæ Antiquæ) album in which "the distinctions between old and new are blurred, and the effect is comforting rather than disconcerting." As with many Kronos Quartet albums, the basic string quartet is augmented by various other, sometimes exotic instruments. The Swedish song "Längdans efter Byfåns Mats" features a bagpipe, and the traditional Swedish bridal march "Brudmarsch frå Östa" includes a nyckelharpa (a string instrument related to the hurdy-gurdy). Chinese virtuoso musician Wu Man plays two kinds of ruan (a plucked lute-like string instrument) on "Lachrymæ Antiquæ." Perhaps the most exotic instrumentation is found on "Uleg-Khem", a traditional Tuvan song, where the quartet