The C Major Scale on Guitar: Open Position, One Octave Shapes, and Why It Matters

Why Start With C Major

C major is the scale most music theory is explained with, for one simple reason. It uses only the natural notes, C, D, E, F, G, A and B, with no sharps or flats. On a piano those are the white keys. On a guitar, learning it gives you the reference point that every other key is measured against.

It is also the key of many beginner songs, and it shares its notes with A minor. Once you know where these seven notes are, a large part of the fretboard stops being a mystery.

Whole Steps and Half Steps

Every major scale follows the same pattern of distances between notes. On the guitar a half step is one fret and a whole step is two frets. The major scale pattern is whole, whole, half, whole, whole, whole, half.

In C major, that means two frets from C to D, two from D to E, one from E to F, two from F to G, two from G to A, two from A to B and one from B back to C. The two half steps, E to F and B to C, are the reason there are no sharps or flats in this key. Those note pairs are naturally one fret apart.

If you remember only one thing from this page, remember that pattern. It builds a major scale from any starting note.

C Major Scale in Open Position

Open position uses open strings and the first three frets, and it is where most people learn the scale first. Start on the A string, third fret, which is C.

From there: A string fret 3 is C. D string open is D, fret 2 is E, fret 3 is F. G string open is G, fret 2 is A. B string open is B, fret 1 is C. That is one full octave from C to C.

You can continue upward for more range: B string fret 3 is D, high E string open is E, fret 1 is F, fret 3 is G. Going down below the first C, the low E string open is E, fret 1 is F, fret 3 is G, and the A string open is A and fret 2 is B.

A Movable One-Octave Shape

Open position only works in C, because it depends on the open strings. A movable shape uses no open strings, so you can slide it anywhere and play a major scale in any key.

Here is a one-octave shape starting on the A string. For C, start at the third fret of the A string. A string: frets 3, 5. D string: frets 2, 3, 5. G string: frets 2, 4, 5. Keep your hand in second position, with the first finger covering fret 2.

Slide the same shape so the first note is on a different root, and it becomes that major scale. Starting on the fifth fret of the A string gives D major, starting on the seventh fret gives E major. Our fretboard map is useful for checking you landed on the right root.

How to Practise So It Sticks

Slow and even beats fast and messy. Use a metronome at a tempo where every note is clean, then raise it a few beats per minute once it feels easy. Our guide to metronome practice explains a routine that works.

Say the note names out loud while you play, at least for the first week. It sounds childish and it works, because it ties the sound, the fret and the name together in your memory.

• Play up and down the open position scale, slowly, with a metronome
• Say each note name as you play it
• Play in thirds: C E, D F, E G, and so on
• Pick a simple melody you know and find it using only these notes
• Record the scale over a C chord to hear how each note sounds against it

Where You Will Use It

The major scale is the source of the chords in a key. Build chords from each note of C major and you get C, D minor, E minor, F, G, A minor and B diminished, the chords that appear in countless songs in C. Understanding this is the key to reading and predicting chord progressions, which we covered in reading chord progressions.

It is also the natural next step after the pentatonic scale. The pentatonic guide uses five notes, and the major scale adds the two that complete the key, which lets you play melodies the pentatonic cannot.