The standard open-string notes for most ukuleles are G4, C4, E4, A4, commonly written as GCEA; those frequencies are G4 = 392 Hz, C4 = 261.63 Hz, E4 = 329.63 Hz, and A4 = 440 Hz.
Standard ukulele string notes you need to know right now (GCEA)
Soprano, concert and tenor ukuleles typically use G4 C4 E4 A4 as open strings; most players use a re-entrant high G which places the G string above the C in pitch rather than below it.
List of common open-string frequencies you should memorize: G4 — 392 Hz, C4 — 261.63 Hz, E4 — 329.63 Hz, A4 — 440 Hz.
Quick baritone note: baritone ukuleles use D3 G3 B3 E4, which matches the guitar’s top four strings and sits noticeably lower in pitch; those frequencies are D3 = 146.83 Hz, G3 = 196.00 Hz, B3 = 246.94 Hz, E4 = 329.63 Hz.
How ukulele size changes the open-string notes and pitch range
Soprano and concert ukes share similar tunings and bright, compact tone; tenor usually keeps the same open-string notes but offers a longer scale and the option to tune to low‑G for more bass.
Choosing low‑G (G3) on tenor gives a linear low-to-high range: G3 C4 E4 A4, which extends the bass and changes chord voicings compared with re-entrant G4.
Baritone sits a fourth lower with D3 G3 B3 E4, so chord shapes are familiar but the sonic register moves down; that affects how your arrangements sit in a band or with a voice.
Practical buying note: scale length controls playable tension and tone—longer scale supports low‑G without flabby strings; short scale favors re-entrant tuning for bright rhythm.
Which string is which: naming, numbering, and high vs low G explained
String numbering runs 1 to 4 where 1st = A (nearest the floor when playing) and 4th = G (nearest your chin); common naming uses the letters A, E, C, G from highest-numbered to lowest-numbered string.
Re-entrant (high G) means the open G is higher in pitch than the C string; linear (low G) places the G lower than C and creates a standard low-to-high progression across the strings.
Tip for learning and tabs: always note the tuning at the top of a chart; when a chart assumes GCEA re-entrant, a low‑G uke will sound thicker and may require a capo or transposition to match the recorded version.
Step-by-step tuning methods for reliable GCEA (clip-on tuner, app, piano, and by ear)
Using a clip-on chromatic tuner: select A440 reference, pluck each open string and tune until the tuner reads the target note (G, C, E, A) with the needle or indicator centered.
Tuning with a smartphone app or online tuner works the same—use the chromatic mode to avoid locking into guitar-only presets and mute sympathetic strings while tuning.
Tune by ear (relative method): tune any string to a reference, then use these fretted checks—fret 5 on G equals open C, fret 4 on C equals open E, and fret 5 on E equals open A; adjust until pitches match.
Advanced verification: play the 12th-fret harmonic and compare it to the fretted 12th note to check intonation; mismatch means saddle or nut setup needs attention.
Re-entrant versus linear (low G) tuning: tonal differences and when to choose each
Re-entrant high G gives bright, percussive rhythm chops and the classic ukulele “jangle”; low‑G increases bass presence for fuller chords and extended fingerstyle range.
Low‑G options: a wound G string or a thicker fluorocarbon mono string both provide the lower pitch without excessive tension; wound G strings often feel closer to traditional guitar string response.
Pick low‑G if you fingerpick, play solo arrangements or want chord voicings with more low end; choose high G for strumming, ukulele ensemble parts, or a lighter, vintage tone.
Alternate tunings and creative note setups beyond GCEA
Baritone DGBE is the most common alternate tuning; open tunings like open C (G C G C) or slack-key variants are used for slide, folk and Hawaiian styles.
Alternate tunings change chord shapes and voicings: the same fingering produces different chords and you’ll often transpose by moving shapes rather than relearning chord names.
Retune safely: make small incremental pitch changes, replace one string at a time for large retuning, and avoid exceeding your uke’s recommended string gauges to prevent neck stress.
How open-string notes determine chord shapes, transposition, and reading chord charts
Identical diagrams can sound different across GCEA vs DGBE because the voicing and octave placement change; a C chord on soprano (0003) sits higher than the same shape on baritone.
Quick transposition tip: capo baritone at 5th fret to approximate the pitch relationships of a GCEA low‑G uke—D3→G3, G3→C4, B3→E4, E4→A4—so most standard shapes line up in pitch class though the G octave differs.
Practical example: a C chord on soprano (0003) remains 0003 on baritone but sounds lower; the harmonic content and bass motion will be different even if the fingering is identical.
Choosing strings and setup to hold your chosen notes: materials, gauges, and low‑G options
String materials matter: nylon gives warm, mellow tone; fluorocarbon gives brighter, more focused sound and higher tension for similar pitch; wound strings add body on lower notes.
For low‑G choose a specifically wound or heavy-gauge fluorocarbon string rated for that pitch; avoid arbitrarily thicker nylon or you risk buzzing and poor feel.
Setup notes: switching gauge often requires nut slot widening, saddle adjustment and possible bridge tweak to maintain proper action and intonation; plan for a setup if you change string types.
Common tuning problems and quick troubleshooting fixes
Slipping pegs: tighten the screw inside the tuner slightly, wind strings neatly around the post with 2–3 wraps for friction, and stretch new strings gently while tuning to stabilize them.
New-string stretch: tune up to pitch, pull each new string gently away from the fretboard several times, then retune; repeat until tuning holds.
Poor intonation at the 12th fret signals saddle or nut issues; verify with the 12th-fret harmonic and a fretted 12th; if they don’t match, a tech-level setup is necessary.
Fast reference cheat-sheet: open-string notes, alternate notes and frequency table for practice
Compact list: Standard GCEA (re-entrant) — G4 (392 Hz), C4 (261.63 Hz), E4 (329.63 Hz), A4 (440 Hz).
Low‑G variant: G3 C4 E4 A4 (G3 = 196.00 Hz).
Baritone: D3 G3 B3 E4 (D3 = 146.83 Hz, G3 = 196.00 Hz, B3 = 246.94 Hz, E4 = 329.63 Hz).
Mnemonic to remember string order (4th to 1st): Good Cats Eat Apples or simply memorize G C E A in that order.
Practice drills and ear-training exercises to internalize ukulele string notes
Drill 1: Say the open-string names aloud before you pluck them; repeat until naming and hearing match instantly.
Drill 2: Use a piano or tuner app—play the piano key, then match it on the ukulele; do this for each open string and the first five frets.
Drill 3: Sing the open-string pitch, then pluck the string to check; singing builds internal pitch reference faster than reading alone.
Song-based drills: practice three simple songs that use open-string shapes—try “Twinkle Twinkle Little Star”, “Happy Birthday”, and a basic arrangement of “I’m Yours”—focus on hearing how open strings color each chord.
Best apps, tools and learning resources to master ukulele tuning and string notes
Clip-on chromatic tuners like Snark or Korg offer fast, accurate readings and work in noisy rooms; a true chromatic tuner recognizes every pitch.
Top apps: Fender Tune, Cleartune, and free chromatic tuners on Android/iOS; choose one that displays note names and cents offset for fine adjustments.
Learning aids: fretboard trainers and chord-finder apps speed up note mapping; printable charts and frequency tables from reputable uke sites help with practice and reference.
Community resources: online forums, subreddits and local uke clubs are useful for practical setup advice, string recommendations, and troubleshooting tips.
