Plectrum in the context of "Harpsichord"

In musical instrument classification, string instruments, or chordophones, are musical instruments that produce sound from vibrating strings when a performer strums, plucks, strikes or sounds the strings in varying manners.

Musicians play some string instruments, like guitars, by plucking the strings with their fingers or a plectrum (pick), and others by hitting the strings with a light wooden hammer or by rubbing the strings with a bow, like violins. In some keyboard instruments, such as the harpsichord, the musician presses a key that plucks the string. Other musical instruments generate sound by striking the string.

In music, strumming is a way of playing a stringed instrument such as a guitar, ukulele, or mandolin. A strum or stroke is a sweeping action where a finger or plectrum brushes over several strings to generate sound. On most stringed instruments, strums are typically executed by a musician's designated strum hand (typically the musician's dominant hand, which is often responsible for generating the majority of sound on a stringed instrument), while the remaining hand (referred to as the fret hand on most instruments with a fingerboard) often supports the strum hand by altering the tones and pitches of any given strum.

Strums are often contrasted with plucking, as a means of vibrating an instrument's strings. In plucking, a specific string or designated set of strings are individually targeted to vibrate, whereas in strumming, a less precise targeting is usually used. Compared to other plucking techniques, any group of strings brushed in a single sweep by a plectrum could be considered a strum due to the plectrum's less precise string group targeting (however, a plectrum might simultaneously pluck a small group of strings without being considered a strum). In contrast, a musician could utilize a technique with more precise string group targeting (such as a fingerstyle or fingerpick technique) to pluck all the strings on a stringed instrument at once and this would still be considered a pluck, not a strum.

The citole was a string musical instrument, closely associated with the medieval fiddles (viol, vielle, gigue) and commonly used from 1200–1350. It was known by other names in various languages: cedra, cetera, cetola, cetula, cistola, citola, citula, citera, chytara, cistole, cithar, cuitole, cythera, cythol, cytiole, cytolys, gytolle, sitole, sytholle, sytole, and zitol.

Like the modern guitar, it was manipulated at the neck to get different notes, and picked or strummed with a plectrum (the citole's pick was long, thick, straight and likely made of ivory or wood). Although it was largely out of use by the late 14th century, the Italians "re-introduced it in modified form" in the 16th century as the cetra (cittern in English), and it may have influenced the development of the guitar as well. It was also a pioneering instrument in England, introducing the populace to necked, plucked instruments, giving people the concepts needed to quickly switch to the newly arriving lutes and gitterns. Two possible descendant instruments are the Portuguese guitar and the Corsican Cetera, both types of cittern.

The gittern was a relatively small gut-strung, round-backed instrument that first appeared in literature and pictorial representation during the 13th century in Western Europe (Iberian Peninsula, Italy, France, England). It is usually depicted played with a quill plectrum, as can be seen clearly beginning in manuscript illuminations from the thirteenth century. It was also called the guiterna in Spain, guiterne or guiterre in France, the chitarra in Italy and Quintern in Germany. A popular instrument with court musicians, minstrels, and amateurs, the gittern is considered an ancestor of the modern guitar and other instruments like the mandore, bandurria and gallichon.

From the early 16th century, a vihuela-shaped (flat-backed) guitarra began to appear in Spain, and later in France, existing alongside the gittern. Although the round-backed instrument appears to have lost ground to the new form which gradually developed into the guitar familiar today, the influence of the earlier style continued. Examples of lutes converted into guitars exist in several museums, while purpose-built instruments like the gallichon utilised the tuning and single string configuration of the modern guitar. A tradition of building round-backed guitars in Germany continued to the 20th century with names like Gittar-Laute and Wandervogellaute.

A qanbūs (Arabic: قنبوس) is a short-necked lute that originated in Yemen and spread throughout the Arabian Peninsula. Sachs considered that it derived its name from the Turkic komuz, but it is more comparable to the oud. The instrument was related to or a descendant of the barbat, a (possibly) skin-topped lute from Central Asia. The qanbūs has 6 or 7 nylon strings that are plucked with a plectrum to generate sound. Unlike many other lute-family instruments, the gambus has no frets. Its popularity declined in Yemen during the early 20th century reign of Imam Yahya; by the beginning of the 21st century, the oud had replaced the qanbūs as the instrument of choice for Middle-Eastern lutenists.

Yemen migration saw the instrument spread to different parts of the Indian Ocean. In Muslim Southeast Asia (especially Indonesia, Malaysia and Brunei), called the gambus, it sparked a whole musical genre of its own. Nowadays it is played in the traditional dance of Zapin and other genres, such as the Malay ghazal and an ensemble known as kumpulan gambus ("gambus group"). In the Comoros it is known as gabusi, and in Zanzibar as gabbus.

The bouzouki (/buːˈzuːki, bʊˈ-/, also US: /bəˈ-/; Greek: μπουζούκι [buˈzuki]; plural. bouzoukis or bouzoukia, μπουζούκια) is a musical instrument popular in West Asia (Syria, Iraq, Lebanon, Cyprus), Balkans (Greece, North Macedonia, Bulgaria) and Turkey.

It is a member of the long-necked lute family, with a round body and a long neck with a fretted fingerboard. It has steel strings and is played with a plectrum, producing a sharp metallic sound, reminiscent of a mandolin but pitched lower. It is the precursor to the Irish bouzouki, an instrument derived from the Greek bouzouki that is popular in Celtic, English, and North American folk music.