A guitar is a string instrument in the chordophone family

A guitar belongs to the chordophone family, which is the broad category for any instrument that makes sound by vibrating strings. Within that family, guitars sit in the lute subfamily — instruments with a neck, a body, and strings that run the length of the neck. The strings vibrate to produce sound, either when plucked by fingers or a pick, or occasionally strummed.

The chordophone family is one of the four main instrument families used by musicologists worldwide. The other three are aerophones (wind instruments like flutes and trumpets), membranophones (drums and percussion with stretched skin or membrane), and idiophones (instruments like cymbals and bells that vibrate as a whole). Guitars share the chordophone category with pianos, harps, violins, banjos, and ukuleles — anything where strings are the sound source.

Key Takeaways

  • Guitars belong to the chordophone family, the category for all string instruments that produce sound through vibrating strings.
  • Within chordophones, guitars are part of the lute subfamily, which includes instruments with a neck and a body.
  • Other lute-family instruments include banjos, mandolins, and ukuleles, all of which share the same basic structure of neck and resonating body.
  • The chordophone family is one of four main instrument families used in music classification, alongside wind, percussion, and self-vibrating instruments.

How guitars compare to other lute-family instruments

Guitars share the lute subfamily with several other recognizable instruments. A banjo has a similar neck-and-body structure but uses a drum head stretched over a circular frame instead of a wooden soundboard, which gives it a brighter, more percussive tone. A mandolin is smaller than a guitar and typically has eight strings arranged in four pairs, producing a higher pitch. A ukulele is even smaller, usually with four strings, and originated in Hawaii.

All of these instruments work the same way: strings run across a neck, the player presses strings against frets or the neck to change pitch, and the body resonates to amplify the sound. The main differences are size, number of strings, and the material of the resonating chamber. A guitar's wooden body is designed to vibrate at frequencies that produce warm, balanced tones across a wide range.

The difference between acoustic and electric guitars within the chordophone family

Both acoustic and electric guitars are chordophones, but they produce sound differently. An acoustic guitar relies entirely on the wooden body to resonate the vibrations of the strings — the larger the body, the louder the sound. An electric guitar uses a pickup (a magnetic sensor) to detect string vibrations and send them to an amplifier, which converts the signal into sound through a speaker.

This distinction does not change the guitar's family classification. Both types are still lutes, still chordophones, because both use vibrating strings as the primary sound source. The amplification method is different, but the fundamental principle remains the same. A classical guitar, a steel-string acoustic, a solid-body electric, and a semi-hollow electric are all members of the same instrument family.

How guitars fit into the broader history of string instruments

The guitar's ancestors trace back thousands of years to early plucked string instruments in Mesopotamia and ancient Egypt. The lute itself — the direct ancestor of the modern guitar — developed in the Middle East and spread to Europe during the medieval period. By the Renaissance, the lute was a dominant instrument in European courts, and the guitar evolved as a simpler, more portable alternative.

The modern classical guitar took its current form in Spain during the 19th century, with six strings and a standardized body size. Electric guitars emerged in the 1930s as amplification technology became available. Despite these changes, the guitar has remained a chordophone throughout its history — the defining feature has always been strings vibrating to create sound.

Why instrument families matter for understanding how guitars work

Knowing that a guitar is a chordophone helps explain how it produces sound and why it shares certain characteristics with other string instruments. All chordophones rely on string tension, string length, and body resonance to determine pitch and volume. Understanding this principle makes it easier to grasp why a longer string produces a lower note, why tighter strings produce higher notes, and why a larger body produces louder sound.

The family classification also helps musicians and builders think about design. If you understand that a guitar is fundamentally a resonating chamber attached to a vibrating string system, you can predict how changes to body size, wood type, or string gauge will affect the sound. This is why luthiers (guitar makers) can experiment with different materials and shapes while keeping the core function intact.

Other string instruments in the chordophone family you might encounter

Beyond the lute subfamily, the chordophone family includes instruments with different structures. A harp has strings that run perpendicular to a frame rather than along a neck — each string typically plays one note. A piano is technically a chordophone because hammers strike strings inside the case, though it is played with keys rather than plucking. A violin is a chordophone played with a bow rather than plucked or strummed.

A sitar, common in Indian classical music, is a lute-family instrument like the guitar but with a different body shape, more strings, and sympathetic strings that vibrate without being played directly. A cello and bass are bowed chordophones that produce lower pitches than violins. All of these instruments, despite their differences in appearance and playing technique, share the core feature of vibrating strings creating sound.

Frequently Asked Questions

Is a guitar the same family as a violin?

Both are chordophones, so they share the same broad family. However, violins are bowed instruments (a bow draws across the strings), while guitars are plucked or strummed. Within the chordophone family, they belong to different subfamilies based on how they are played and how their bodies are constructed.

Why is a piano considered a string instrument if you play it with keys?

A piano is classified as a chordophone because the sound comes from strings vibrating inside the case. When you press a key, a hammer strikes the strings, making them vibrate. The keys are just the mechanism for triggering the strings — the strings themselves are what produce the sound.

Is a ukulele in the same family as a guitar?

Yes. Both are chordophones and both are part of the lute subfamily. The main differences are size and number of strings, but the structure and sound-production method are the same. A ukulele is essentially a smaller, simpler version of a guitar.

What makes something a chordophone instead of a different instrument family?

The defining feature of a chordophone is that vibrating strings are the primary sound source. If an instrument makes sound any other way — by vibrating air (wind instruments), vibrating a membrane (drums), or vibrating as a solid object (bells) — it belongs to a different family.