The classical guitar, also called Spanish guitar, is a member of the guitar family used in classical music and other styles. An acoustic wooden string instrument with strings made of gut or nylon, it is a precursor of the modern steel-string acoustic and electric guitars, both of which use metal strings. Classical guitars derive from the Spanish vihuela and gittern of the 15th and 16th century. Those instruments evolved into the 17th and 18th-century baroque guitar—and by the mid-19th century, early forms of the modern classical guitar. Today's modern classical guitar was established by the late designs of the 19th-century Spanish luthier, Antonio Torres Jurado.
The guitar is a stringed musical instrument, that is usually fretted and typically has six or twelve strings. It is usually held flat against the player's body and played by strumming or plucking the strings with the dominant hand, while simultaneously pressing selected strings against frets with the fingers of the opposite hand. A guitar pick may also be used to strike the strings. The sound of the guitar is projected either acoustically, by means of a resonant hollow chamber on the guitar, or amplified by an electronic pickup and an amplifier.
The harp is a stringed musical instrument that has individual strings running at an angle to its soundboard; the strings are plucked with the fingers. Harps can be made and played in various ways, standing or sitting, and in orchestras or concerts. Its most common form is triangular in shape and made of wood. Some have multiple rows of strings and pedal attachments.
The charango is a small Andean stringed instrument of the lute family, from the Quechua and Aymara populations in the territory of the Altiplano in post-Colonial times, after European stringed instruments were introduced by the Spanish during colonialization. The instrument is widespread throughout the Andean regions of Bolivia, Peru, Ecuador, northern Chile and northwestern Argentina, where it is a popular musical instrument that exists in many variant forms.
The hurdy-gurdy is a string 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 or metal—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.
An autoharp or chord zither is a string instrument belonging to the zither family. It uses a series of bars individually configured to mute all strings other than those needed for the intended chord. The term autoharp was once a trademark of the Oscar Schmidt company, but has become a generic designation for all such instruments, regardless of manufacturer.
The Appalachian dulcimer is a fretted string instrument of the zither family, typically with three or four strings, originally played in the Appalachian region of the United States. The body extends the length of the fingerboard, and its fretting is generally diatonic.
The seven-string guitar adds one additional string to the more common six-string guitar, commonly used to extend the bass range or also to extend the treble range.
The guitarrón mexicano (Spanish for "big Mexican guitar", the suffix -ón being a Spanish augmentative) or Mexican guitarrón is a very large, deep-bodied Mexican six-string acoustic bass guitar played traditionally in Mariachi groups. Although similar to the guitar, it is not a derivative of that instrument, but was independently developed from the sixteenth-century Spanish bajo de uña ("fingernail[-plucked] bass"). Because its great size gives it volume, it does not require electric amplification for performances in small venues. The guitarrón is fretless with heavy gauge strings, most commonly nylon for the high three and wound metal for the low three. The guitarrón is usually played by doubling notes at the octave, a practice facilitated by the standard guitarrón tuning A1 D2 G2 C3 E3 A2. Unlike a guitar, the pitch of the guitarrón strings does not always rise as strings move directionally downward from the lowest-pitched string (A2, which is the 6th string from the lowest-pitched string, is a perfect 5th below its adjacent string E3).
The Russian guitar (sometimes referred to as a "Gypsy guitar") is an acoustic seven-string guitar that was developed in Russia toward the end of the 18th century: it shares most of its organological features with the Spanish guitar, although some historians insist on English guitar descent. It is known in Russian as the semistrunnaya gitara (семиструнная гитара), or affectionately as the semistrunka (семиструнка), which translates to "seven-stringer". These guitars are most commonly tuned to an open G chord as follows: D2 G2 B2 D3 G3 B3 D4. In classical literature, the lowest string (D) occasionally is tuned down to the C.
The saung, is an arched harp used in traditional Burmese music. The saung is regarded as a national musical instrument of Burma. The saung is unique in that it is a very ancient harp tradition and is said to be the only surviving harp in Asia.
The Gravikord is a 24 string electric double bridge-harp invented by Robert Grawi in 1984, which is closely related to both the West African kora and the mbira. It was designed to employ a separated double tonal array structure making it possible to easily play cross-rhythms in a polyrhythmic musical style in a modern electro-acoustic instrument. The Gravi-kora is a similar instrument, also developed by Grawi, which is tuned identically to a traditional 21 string kora.
The cross-strung harp or chromatic double harp is a multi-course harp that has two rows of strings which intersect without touching. While accidentals are played on the pedal harp via the pedals and on the lever harp with levers, the cross-strung harp features two rows so that each of the twelve semitones of the chromatic scale has its own string.
The triple harp is a type of multi-course harp employing three parallel rows of strings instead of the more common single row. One common version is the Welsh triple harp, used today mainly among players of traditional Welsh folk music.
The pedal harp is a large and technologically modern harp, designed primarily for use in art music. It may be played solo, as part of a chamber ensemble, or in an orchestra. It typically has 47 strings with seven strings per octave, giving a range of six and a half octaves.
The Mexican vihuela is a guitar-like string instrument from 19th-century Mexico with five strings and typically played in mariachi groups.
On a stringed instrument, a break in an otherwise ascending order of string pitches is known as a re-entry. A re-entrant tuning, therefore, is a tuning which does not order all the strings from the lowest pitch to the highest pitch.
The arpa jarocha is a large wooden harp that is normally played while standing, although early examples from the 16th through the first three or four decades of the 19th centuries were smaller and were played while seated. It has a wooden frame, a resonator, a flat soundboard, 32-36 nylon strings, and does not have pedals. This harp is tuned diatonically over five octaves. The top of its soundboard sometimes arches outward due to the tension of the strings. Unlike other Mexican harps, the arpa jarocha has its sound holes located on the back of the sound board instead of on the front.
The çeng is a Turkish harp. It was a popular Ottoman instrument until the last quarter of the 17th century.
A multi-course harp is a harp with more than one row of strings. Harps with two rows are called double harps; harps with three rows are called triple harps. A harp with only one row of strings is called a single-course harp.
