Harp guitar
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The harp guitar is a guitar-based stringed instrument generally defined as a "guitar, in any of its accepted forms, with any number of additional unstopped strings that can accommodate individual pluc
Gibson Style U, c. 1911.
Early 20th. Century harp guitars with a Gibson at left.
Harp guitars at the Museum of Making Music.
Several models exhibited.
Contraguitar
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The contraguitar or Schrammel guitar is a type of guitar developed in Vienna in the mid-19th century. In addition to the usual guitar neck with six strings and a fretboard, it has a second, fretless n
Harp guitar
…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…
A Viennese "Schrammel guitar."