Harp guitar

The harp guitar (or "harp-guitar") is a guitar-based stringed instrument with a history of well over two centuries. While there are several unrelated historical stringed instruments that have been referred to as "harp-guitar" over the centuries, its most common definition is a "guitar, in any of its accepted forms, with any number of additional unstopped strings that can accommodate individual plucking." The word "harp" is used in reference to its harp-like unstopped open strings. A harp guitar must have at least one unfretted string lying off the main fretboard, typically played as an open string.

This family consists of many varieties of instrument configurations. Most readily identified are American harp guitars with either hollow arms, double necks or harp-like frames for supporting extra bass strings, and European bass guitars (or contraguitars). Other harp guitars feature treble or mid-range floating strings, or various combinations of multiple floating string banks along with a standard guitar neck.

While most players of harp guitars play on acoustic instruments, a few of them also work with electric instruments. Notable artists who played electric harp guitars are Tim Donahue (who uses a fretless guitar section) and Michael Hedges. American musician William Eaton both designs and plays electric harp guitar and is considered one of the world's great designers/builders of unique guitars. The Japanese noise band Solmania built their own harp guitars. Yuri Landman has built a 17 string electric harp guitar for Finn Andrews of The Veils. The instrument has an additional movable bridge on the harp section allowing players to pitch the harp section higher or lower.

Historical harp guitar players include the German composers and guitarists Adam Darr (1811–1866) and Eduard Bayer (1822–1908) and the Italian virtuosi Pasquale Taraffo (1887–1937),Mario Maccaferri, and Luigi Mozzani. Viennese and French virtuosos who often played instruments with extra, floating bass strings include Carulli, Coste, Giuliani, Mertz, Padovec and Sor.

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