semicord

G major scale

Notes
G A B C D E F#
Formula
1 2 3 4 5 6 7
Steps
W W H W W W H (W tone, H semitone)
Also called
G Ionian

Seven notes from G up to the next G. Each note is written with the letter its degree names, one letter each, so the spelling follows the formula.

G major on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4C#5Eb5F#5Ab5Bb5C4GABCC5DEF#G

From G4 to G5, the root in blue-green.

Intervals from G

NoteDegreeIntervalSemitones
G1root0
A2major second2
B3major third4
C4perfect fourth5
D5perfect fifth7
E6major sixth9
F#7major seventh11

G major on the guitar

Standard tuning, high e on top as in tablature, open strings to fret 12. Every dot is a note of the scale; the pattern repeats from fret 12 up.

eBGDAE357912EF#GABCDEBCDEF#GABGABCDEF#GDEF#GABCDABCDEF#GAEF#GABCDE

The seven chords of G major

Every other note of the scale stacked on each note. Numerals are measured against the major scale on G, so a b marks a chord root a semitone lower than in major.

NumeralChordNotesSound
IGG B D
iiAmA C E
iiiBmB D F#
IVCC E G
VDD F# A
viEmE G B
vii°F#dimF# A C

Seventh chords

NumeralChordNotesSound
Imaj7Gmaj7G B D F#
ii7Am7A C E G
iii7Bm7B D F# A
IVmaj7Cmaj7C E G B
V7D7D F# A C
vi7Em7E G B D
viiø7F#m7b5F# A C E

Same notes, different home note

G major uses exactly the same notes as C Lydian, D Mixolydian, E natural minor, F# Locrian, A Dorian and B Phrygian. What changes is the note the music keeps returning to, and with it which chord sounds like home.

The chords, progressions and a capo tip for this scale as a key are on the G major key page.

How G major is built

The major scale is two identical four-note groups a whole tone apart: G A B C and D E F# G, each stepping tone, tone, semitone. The two semitones fall between the 3rd and 4th notes (B–C) and between the 7th and the octave (F#–G); that last one, the leading note F# pulling up to G, is why a melody in this scale sounds finished when it lands on G.

Ionian is the name of the same scale as a mode: the first of the seven modes of the major scale, so it gets no page of its own.

Played some notes and not sure which scale they come from? The scale finder listens to the piano, a MIDI keyboard or the microphone and ranks all 180 scales.

What this page cannot do

  • One spelling per scale. the root is spelled the way that needs the fewest sharps and flats.
  • Equal temperament only. Blues and many folk traditions bend notes between these pitches, and Arabic and Turkish maqam scales use quarter tones that a piano cannot play.
  • The guitar diagram shows standard tuning only and does not suggest fingerings; any note can be played in several places.
  • The sound is a simple synthesised tone made in your browser, not a recorded instrument.

Made with AI tools.