# AI Wiki - Music - Classical Guitar ## What it is The classical guitar (also "Spanish" or "nylon-string" guitar) is the guitar of the concert classical repertoire and the ancestor of the flamenco guitar. It uses nylon strings at low tension on a lightly built body, with a wide, flat neck. It is tuned like every other six-string (E A D G B E), so chord shapes and scale positions are the same as on an [[AI Wiki - Music - Electric Guitar]] or a [[AI Wiki - Music - Steel-String Acoustic Guitar]], but it feels, sounds and is taught differently. The side-by-side comparison is in [[AI Wiki - Music - Guitar Types Compared]]; the right-hand and left-hand technique of the classical tradition is in [[AI Wiki - Music - Classical Guitar Technique]]. ## What defines it - **Nylon strings**: the three trebles are plain nylon (or similar polymers); the three basses are multi-filament nylon wound with silver-plated copper. Strings were gut until 1948, when Albert Augustine had DuPont make nylon strings (Wikipedia). They are sold by tension (normal, high/hard) rather than gauge; a normal-tension set such as D'Addario EJ45 pulls about 84 lb in total, against about 160 lb for a light steel-string set. - **Wide, flat neck**: 48-54 mm at the nut (52 mm is typical), against about 42 mm on an electric; the fingerboard is flat, with no radius and usually no front fret markers. - **12 frets clear of the body**: the body starts at the 12th fret, and most guitars have 19 frets (the 19th often split). - **Scale length**: about 650 mm (25.6"), the length Antonio de Torres used; some makers moved to 660 mm for more volume. - **Tie-block bridge**: there are no bridge pins. Each string passes through a hole in the tie block and is knotted around itself behind the bridge (Taylor's nylon restringing guide shows the knot). Steel strings must never be put on a classical guitar. - **Slotted headstock** with tuners mounted sideways (Andertons). - **No truss rod** in most instruments: nylon's low tension doesn't need one; the neck may be reinforced with a strip of hard wood such as ebony (Wikipedia). - **Fan bracing**: thin braces radiating from below the soundhole, light enough to let a low-tension string drive the top. ## History in brief The modern classical guitar takes its form from **Antonio de Torres Jurado** in 19th-century Spain: a broader body, a more pronounced waist, a thinner top and improved fan bracing. Torres built a guitar with papier-mâché back and sides in 1862 to show that the top produces most of the sound. **Francisco Tárrega** popularised Torres's design and much of the technique still taught. In the 20th century **Andrés Segovia** brought the guitar to concert halls and commissioned works from composers such as Moreno Torroba, Ponce, Castelnuovo-Tedesco and Rodrigo; Rodrigo's *Concierto de Aranjuez* is one of the best-known pieces with guitar. ## Sound Nylon gives a warm, round, mellow tone with fewer bright overtones than steel (Andertons). It is quieter than a steel-string, very responsive to how and where the string is plucked (near the bridge for bright, over the soundhole or neck for dark), and suited to music where several voices move independently: a bass line, a melody and an accompaniment from one player. Fingernails, flesh, and the angle of the stroke change the sound a lot, which is part of why classical technique puts so much weight on the plucking hand. ## Flamenco vs classical guitars The flamenco guitar comes from the same family and looks almost identical. The differences (Wikipedia): | | Classical | Flamenco | |---|---|---| | Back and sides | Rosewood or mahogany for sustain | Cypress or sycamore ("blanca"); rosewood on the darker "negra" | | Build | Heavier, more bracing | Lighter, thinner top, less bracing, often a shallower body | | Action | Higher | Lower; some buzz is accepted, even used | | Sound | Warm, sustaining | Bright, dry, percussive, quick response, less sustain | | Tap plate | None | Golpeador protects the top from finger taps (golpes) | | Tuners | Geared machines | Traditionally wooden friction pegs; geared machines are common now | | Technique | Little finger mostly idle | Rasgueado (rapid fingernail strums) uses all fingers including the little finger | A flamenco guitar plays classical pieces fine and many students use one; a classical guitar sounds too soft and sustained for most flamenco. ## Notation and repertoire traditions The classical guitar tradition is a reading tradition. Music is written in standard notation on a treble clef, sounding an octave lower than written (see [[AI Wiki - Music - Reading Standard Notation]]); tab is rare in classical editions. Additional markings: - **Plucking-hand fingers**: p, i, m, a (thumb, index, middle, ring, from the Spanish names), as in [[AI Wiki - Music - Fingerpicking]]. - **Fretting-hand fingers**: 1-4 next to the note heads (0 for an open string). - **Strings**: a number in a circle (①-⑥). - **Positions**: [[AI Wiki - Music - Diatonic Chords and Roman Numerals|Roman numerals]] for the fret where the first finger sits (V = fifth position); barres as "C" or "B" plus the fret number. Reading usually starts in first position, the four frets nearest the nut, where every note of C major is either an open string or under one finger per fret. This is the area covered by beginner method books in the Carcassi and Sagreras tradition: ```fretboard scale: C major frets: 0-3 labels: notes title: C major in first position (frets 0-3) ``` Each fret maps to a finger: fret 1 = finger 1, fret 2 = finger 2, fret 3 = finger 3. The core repertoire runs from transcriptions of Renaissance lute and Baroque music (Bach's lute and cello suites), through the early 19th-century guitarist-composers Fernando Sor and Mauro Giuliani, to Tárrega, Villa-Lobos, Barrios and the Segovia commissions. Graded studies by Sor, Giuliani, Carcassi and Carulli form the backbone of most teaching. Nylon-string guitars are also central outside classical music: bossa nova and Brazilian music, Latin American styles, fingerstyle [[AI Wiki - Music - Jazz Music|jazz]], and some [[AI Wiki - Music - Folk Music|folk]] and [[AI Wiki - Music - Country Music|country]] players (Willie Nelson's "Trigger" is a nylon-string Martin). ## Why some teachers start beginners on it Arguments for: - **Soft on the fingertips**: nylon is gentler than steel on uncalloused fingers, so early practice hurts less. - **Sized for children**: 1/4, 1/2 and 3/4 classical guitars exist, and music schools and conservatories teach on them. - **Fingerstyle and reading from day one**: the classical method builds an independent plucking hand and notation reading, which transfer to every guitar. - **Cheap and self-contained**: a decent student classical costs little and needs no amp. Arguments against: - **Wide neck and high action**: chords and barres need more stretch and squeeze; small or stiff hands can struggle with the 52 mm neck. - **Different from the music most people want**: strummed [[AI Wiki - Music - Pop Music|pop]] and [[AI Wiki - Music - Rock Music|rock]] sound unlike the record on nylon, and bends are close to impossible. - **Posture**: proper classical posture (foot raised on a footstool or a support on the leg, guitar on the left thigh) is another thing to learn. Andertons sums it up: the classical guitar is not inherently easier, because its techniques take years to master; difficulty depends on the style you choose. A middle option is a **crossover** nylon guitar: about 48 mm at the nut, a slimmer neck, a radiused fingerboard, often a cutaway and a pickup (the Córdoba C9 Crossover, for example). It suits steel-string and electric players who want a nylon sound without the full classical neck. ## Care Nylon strings stretch a lot when new and take days to settle; tune often. The trebles wear where they touch the frets and lose brightness, and the wound basses go dull first. A classical guitar is lightly built, so keep it within the humidity range in [[AI Wiki - Music - Guitar Setup and Maintenance]] and don't leave it in a hot car. ## Key Points - Nylon strings at about 84 lb total (normal tension), tied at a tie-block bridge; never fit steel strings. - Wide flat neck (about 52 mm), 650 mm scale, 12 frets clear of the body, 19 frets, usually no truss rod, fan bracing. - Torres gave it its modern form; Tárrega and Segovia built its repertoire and status. - Flamenco guitars are lighter, lower-action, cypress-bodied and percussive, with a tap plate. - Classical music is read from standard notation with p-i-m-a, circled string numbers and Roman-numeral positions. - Gentle on fingertips but not easier overall: the wide neck, high action and posture take work. Crossover models bridge the gap. ## Open Questions - For a steel-string player adding nylon, is a crossover or a full classical better for learning classical repertoire properly? - **Answered** ([[AI Wiki - Music - Nails, Fingerpicks and Thumbpicks|Nails, Fingerpicks and Thumbpicks]]): How much do nails matter for a hobby player compared with flesh-only playing? Mostly for volume, projection and tone contrast: flesh gives a warm, complete sound at home (Sor and the late Tárrega chose it), and nails start to matter in larger rooms, ensembles and repertoire built on tone colour. - Which graded method suits an adult returning player who already knows [[AI Wiki - Music - Guitar Open Chords|open chords]]: Carcassi, Sagreras, or a modern course? ## References - Wikipedia, "Classical guitar": https://en.wikipedia.org/wiki/Classical_guitar - Wikipedia, "Flamenco guitar": https://en.wikipedia.org/wiki/Flamenco_guitar - Wikipedia, "Guitar": https://en.wikipedia.org/wiki/Guitar - Wikipedia, "Scale length (string instruments)": https://en.wikipedia.org/wiki/Scale_length_(string_instruments) - Andertons, "Classical Guitar vs. Acoustic: What's the Difference?": https://blog.andertons.co.uk/labs/classical-guitar-vs-acoustic-whats-the-difference - Taylor Guitars, "Nylon Restring" (PDF): https://www.taylorguitars.com/sites/default/files/Nylon_Restring.pdf - D'Addario EJ45 per-string tensions (zZounds listing): https://zzounds.com/item--DADEJ4 - Córdoba C9 Crossover specifications (Reverb listing): https://reverb.com/item/34382289-cordoba-luthier-c9-crossover-all-solid-nylon-guitar-case ## Related - [[AI Wiki - Music - Guitar Types Compared]] - [[AI Wiki - Music - Classical Guitar Technique]] - [[AI Wiki - Music - Steel-String Acoustic Guitar]] - [[AI Wiki - Music - Electro-Acoustic Guitar]] - [[AI Wiki - Music - Electric Guitar]] - [[AI Wiki - Music - Switching Between Guitar Types]] - [[AI Wiki - Music - Fingerpicking]] - [[AI Wiki - Music - Fingerstyle Arranging]] - [[AI Wiki - Music - Reading Standard Notation]] - [[AI Wiki - Music - Guitar Setup and Maintenance]] - [[AI Wiki - Music - Guitar Lead Techniques]] - [[AI Wiki - Music - Harmonics]] - [[AI Wiki - Music - Recording Yourself]] - [[AI Wiki - Music - Nails, Fingerpicks and Thumbpicks]] - [[AI Wiki - Music - Guitar Gear Tips and Tricks]] - [[AI Wiki - Music - Guitar Strings and Gauges]] - [[AI Wiki - Music - Motor Learning for Musicians]]