The steel-string acoustic guitar is a modern form of guitar that descends from the gut-strung Romantic guitar, but is strung with steel strings for a brighter, louder sound. Like the modern classical guitar, it is often referred to simply as an acoustic guitar, or sometimes as a folk guitar.
The guitar is a fretted musical instrument that typically has six 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 plectrum or individual finger picks may also be used to strike the strings. The sound of the guitar is projected either acoustically, by means of a resonant chamber on the instrument, or amplified by an electronic pickup and an amplifier.
The ukulele, also called uke, is a member of the lute family of instruments of Portuguese origin and popularized in Hawaii. It generally employs four nylon strings.
The acoustic bass guitar is a bass instrument with a hollow wooden body similar to, though usually larger than a steel-string acoustic guitar. Like the traditional electric bass guitar and the double bass, the acoustic bass guitar commonly has four strings, which are normally tuned E-A-D-G, an octave below the lowest four strings of the 6-string guitar, which is the same tuning pitch as an electric bass guitar.
Scordatura is a tuning of a string instrument that is different from the normal, standard tuning. It typically attempts to allow special effects or unusual chords or timbre, or to make certain passages easier to play. It is common to notate the finger position as if played in regular tuning, while the actual pitch resulting is altered. When all the strings are tuned by the same interval up or down, as in the case of the viola in Mozart's Sinfonia Concertante for Violin, Viola and Orchestra, the part is transposed as a whole.
The pedal steel guitar is a console-type of steel guitar with pedals and knee levers that change the pitch of certain strings to enable playing more varied and complex music than other steel guitar designs. Like all steel guitars, it can play unlimited glissandi and deep vibrati—characteristics it shares with the human voice. Pedal steel is most commonly associated with American country music and Hawaiian music.
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.
An eight-string guitar is a guitar with eight strings, or one more than the Russian guitar's seven. Eight-string guitars are less common than six- and seven-string guitars, but they are used by a few classical, jazz, and metal guitarists. The eight-string guitar allows a wider tonal range, or non-standard tunings, or both.
Copedent is a term used to describe the tuning and pedal arrangement on a pedal steel guitar and is unique to that instrument. Typically expressed in the form of a table or chart, the word is a portmanteau of "chord–pedal–arrangement and is pronounced "co-PEE-dent". It was coined in 1969 by Steel Guitar Hall of Fame member Tom Bradshaw and first reached a wide audience in a 1972 article in Guitar Player magazine. A complete copedent includes the order of strings, their tuning, string gauges, and whether a string is plain or wound; it also indicates how any string's pitch is changed by applying a foot pedal or a knee lever. It has become an international standard used by steel guitar players and manufacturers to describe the specifications of these instruments.
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.
An extended-range bass is an electric bass guitar with a wider frequency range than a standard-tuned four-string bass guitar.
The console steel guitar is any type of electric steel guitar that is built in a frame supported by legs. It may be a lap steel or a pedal steel. Console steel guitars are typically heavier instruments that have multiple necks and/or more than six strings per neck and are therefore not manageable on the player's lap. This type of instrument was created when players in the late 1940s needed to play in different keys and with different chords than the lap steel afforded. To do this, they added additional necks to a lap steel. The player could then easily switch to a different neck on the same instrument, but this made the instrument so heavy and cumbersome that it could not be easily held on the lap. Trying to solve the problem with multiple necks led to the invention of the pedal steel guitar in the 1950s.
A resonator guitar or resophonic guitar is an acoustic guitar that produces sound by conducting string vibrations through the bridge to one or more spun metal cones (resonators), instead of to the guitar's sounding board (top). Resonator guitars were originally designed to be louder than regular acoustic guitars, which were overwhelmed by horns and percussion instruments in dance orchestras. They became prized for their distinctive tone, however, and found life with bluegrass music and the blues well after electric amplification solved the problem of inadequate volume.
E9 tuning is a common tuning for steel guitar necks of more than six strings. It is the most common tuning for the neck located furthest from the player on a two-neck console steel guitar or pedal steel guitar while a C6 neck is the one closer to the player. The E9 is a popular tuning for single neck instruments of eight or more strings. This tuning has evolved in the last half of the twentieth century with input from prominent performers including Jimmy Day, Ralph Mooney and Buddy Emmons to support optimal chord and scale patterns across a single fret on the 10-string pedal steel guitar.
A classical guitar with additional strings is a nylon-string or gut-string classical guitar with more than six strings, in which the additional strings pass over a fingerboard so that they may be "stopped" or fretted with the fingers. These are also known as extended-range guitars, and should not be confused with harp guitars.
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 where the strings are not all ordered from the lowest pitch to the highest pitch.
There are many varieties of ten-string guitar, including:
Each bass guitar tuning assigns pitches to the strings of an electric bass. Because pitches are associated with notes, bass-guitar tunings assign open notes to open strings. There are several techniques for accurately tuning the strings of an electric bass. Bass method or lesson books or videos introduce one or more tuning techniques, such as:
In playing pedal steel guitar, a universal tuning is a tuning for twelve or fourteen string instruments that combines features of several other tunings—commonly including one or both of the standard C6 and E9 tunings. Universal tunings are particularly favoured by advanced players of single-neck instruments.
A nine-string guitar is a guitar with nine strings instead of the commonly used six strings. Such guitars are not as common as the six-string variety, but are used by guitarists to modify the sound or expand the range of their instrument.
