# G major
**G major** is a major key and scale in Western music whose tonic, or home note, is G. Its scale runs G, A, B, C, D, E, F♯, and it is written with a key signature of one sharp, F♯.[1](https://www.allaboutmusictheory.com/major-scale/g-major-scale/) • [2](https://musictheoryprint.com/keys/g-major)
| Key fact | Detail |
|---|---|
| Scale | G, A, B, C, D, E, F♯ (seven different notes, usually rounded off with a G an octave higher)[1](https://www.allaboutmusictheory.com/major-scale/g-major-scale/) |
| Key signature | One sharp, F♯, the first sharp in the order F♯, C♯, G♯, D♯, A♯, E♯, B♯[2](https://musictheoryprint.com/keys/g-major) |
| Relative minor | E minor, sharing the same key signature and the same seven notes[2](https://musictheoryprint.com/keys/g-major) |
| Parallel minor | G minor, the same tonic with a different set of notes[3](https://tomus.app/reference/scales/g-major) |
| Principal chords | I, IV, V, and vi are G, C, D, and E minor[4](https://piano.org/key/g-major/) |
| Repertoire frequency | 118 of 1,462 songs in the OpenScore Lieder corpus (8.1%), the 3rd most common of 24 keys; 287 of 1,974 Mutopia scores (2nd of 24)[2](https://musictheoryprint.com/keys/g-major) |
| Tuning reference | G4 sounds at 392.00 Hz in twelve-tone equal temperament with A4 at 440 Hz[5](https://frequencyatlas.com/frequency/note-G-4) |
## Building the scale
A major scale follows a fixed pattern of whole steps (tones) and half steps (semitones): W, W, H, W, W, W, H. Starting on G and applying this pattern produces G, A, B, C, D, E, F♯, G. The one departure from the white notes of [C major](https://www.edgepedia.org/c-major) is the seventh note: E to F is only a semitone, so an additional semitone is needed and F is raised to F♯.[6](https://www.open.edu/openlearn/history-the-arts/music/an-introduction-music-theory/content-section-5.3)
The scale uses each letter of the musical alphabet exactly once, in order. This is why G major is spelled with F♯ rather than its enharmonic (notes sounding the same pitch but spelled differently) equivalent G♭: a scale containing both G♭ and G would use the letter G twice and skip F entirely, making it unreadable on the staff.[7](https://tomus.app/learn/scales/major-scale)
## Key signature and notation
The key signature is a shorthand placed at the start of each staff: instead of writing a sharp symbol before every F, a single sharp on the F line raises every F in the piece.[1](https://www.allaboutmusictheory.com/major-scale/g-major-scale/) • [8](https://www.daddylongles.com/_files/ugd/2a4ead_ebda4292a2b4479cad3a51bc20e15816.pdf?index=true) Sharps enter key signatures in a fixed order, F♯, C♯, G♯, D♯, A♯, E♯, B♯, adding one more with each step around the circle of fifths, and G major takes only the first of these.[2](https://musictheoryprint.com/keys/g-major)
A key signature alone does not fix the key. The one-sharp signature serves both G major and [E minor](https://www.edgepedia.org/e-minor), and which one a piece is in depends on which note it resolves to.[9](https://strumandkey.com/tools/key-signatures/1-sharp/) Music can also drift between the relative pair without a single accidental changing, because the two keys share the same seven notes with a different center of gravity.[10](https://theorypractice.app/learn/key-signature/g-major)
## Chords and related keys
Stacking thirds on each degree of the G major scale produces its diatonic chords. The tonic (I), subdominant (IV), and dominant (V) triads, G, C, and D, carry most popular music, and the submediant vi, E minor, is what turns the harmony minor without changing key.[4](https://piano.org/key/g-major/)
G major's closely related keys are those whose signatures differ by at most one accidental: C major, a fifth below with no sharps, and [D major](https://www.edgepedia.org/d-major), a fifth above with two sharps, along with their relative minors, [A minor](https://www.edgepedia.org/a-minor), E minor, and [B minor](https://www.edgepedia.org/b-minor). The more notes two keys share, the smoother the move between them, because the music changes few notes to get there.[11](https://www.grammarofmusic.com/en/topics/closely-related-keys) A modulation from C major to G major, for example, is driven by the D7 chord, which brings in F♯, the one new note, and pulls the music toward its new home on G.[12](https://music-theory.org/keys/relative)
## How common is G major
Counts from open datasets give a sense of the key's use, with the caveat that they describe particular repertoires rather than music in general. Within the OpenScore Lieder corpus, a collection of 1,462 art songs almost all dating from the 19th century, 118 songs use G major, which amounts to 8.1% of the whole corpus and 11.7% of the 1,006 songs judged to be major, ranking it 3rd among the 24 keys in number of songs. In the 1,974 scores of the Mutopia collection, 287 are in G major, ranking it 2nd of 24.[2](https://musictheoryprint.com/keys/g-major)
## On instruments
On the piano, G major requires one black key, F♯, in place of the white F.[8](https://www.daddylongles.com/_files/ugd/2a4ead_ebda4292a2b4479cad3a51bc20e15816.pdf?index=true) On the guitar, the key is friendly to open strings: the open G, B, D, and both E strings are all scale tones, and the standard open G chord uses three fretted notes with three strings ringing.[9](https://strumandkey.com/tools/key-signatures/1-sharp/) Guitarists commonly use two fingerings for the open G chord, a 1st-position 3-2-4 fingering that works well when moving to and from chords such as Am, Em, E, and F, and a four-finger voicing with a D on the B string's 3rd fret.[13](https://www.guitarworld.com/lessons/chords/two-essential-g-chord-shapes)
## References
1. [G Major Scale, All About Music Theory](https://www.allaboutmusictheory.com/major-scale/g-major-scale/)
2. [G Major: Scale, Key Signature and Chords, Music Theory Print](https://musictheoryprint.com/keys/g-major)
3. [G Major Scale, Tomus](https://tomus.app/reference/scales/g-major)
4. [Key of G Major: Key Signature (1 Sharp), Chords, piano.org](https://piano.org/key/g-major/)
5. [G4, 392.00 Hz, Frequency Atlas](https://frequencyatlas.com/frequency/note-G-4)
6. [An introduction to music theory: 5.3 Semitones and tones, and the scale of G major, OpenLearn, Open University](https://www.open.edu/openlearn/history-the-arts/music/an-introduction-music-theory/content-section-5.3)
7. [The Major Scale, Pattern, Degrees and How to Build One, Tomus](https://tomus.app/learn/scales/major-scale)
8. [Basic music theory sheet 1, daddylongles.com](https://www.daddylongles.com/_files/ugd/2a4ead_ebda4292a2b4479cad3a51bc20e15816.pdf?index=true)
9. [1 Sharp Is What Key? G Major / E Minor, StrumAndKey](https://strumandkey.com/tools/key-signatures/1-sharp/)
10. [G Major Key Signature, Sharps, Flats & Scale, Theory Practice](https://theorypractice.app/learn/key-signature/g-major)
11. [Closely related keys, Grammar of Music](https://www.grammarofmusic.com/en/topics/closely-related-keys)
12. [Relative and Parallel Keys, Music Theory](https://music-theory.org/keys/relative)
13. [Two essential G chord shapes, Guitar World](https://www.guitarworld.com/lessons/chords/two-essential-g-chord-shapes)
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*Topic: Encyclopedia › Arts and culture › Music › Musical practice and theory › Instruments, theory, and world traditions › Pitch, tuning, scales, and musical acoustics*
*Initially written Sep 17, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license