The G Major Scale

The G major scale is one of the scales we learn after the C scale. It only has one sharp in it the F note.

This scale is made from two terachords from the C and the D scale.

These scales are made from each other you will see the same notes and chords in the G, C and D scales.

The G Scale Construction

The first four notes of this scale came from the key of C. The last four notes of the scale come from the key of D.

G Scale Tetra-chords

A tetra-chord is a four note section of notes that make up half a major scale. Each major scale has two of these.

The first G scale tetra-chord comes from the last C scale tetra-chord and the second one comes from the first D major scale tetrachord.


1st Tetrachord


2nd Tetrachord


G Major Scale Numbering

All the major scales have numbers that go with the notes for easy identification. You will find out later that this way of referring to numbers makes it possible to refer to all scales and chords no matter what key you are in.

Usually this is used to refer to the chords but it is also our way of building our chords from scales. When referring to chords the numbers are usually written in Roman numerals, upper case for major chords and lower case for minor chords.

If you want to learn about the modes of the major scale check this page out.

G Major Chords

G Major Notation-Tab

G Major Chord Diagrams

G Major Key signature

Here’s the key signature for the key of G. The sharp symbol is over the F line in the music staff. This means every note in the F position in the music will be sharp.

You can have other flats or sharps in the music but they will be marked in the music itself.

This helps keep the music easier to read especially as we get more flats or sharps in a key.

Major Key


Key Signature

Rel Minor




Reading Music Notes

Here is a link on how to read music notes.

Reading Music Notes