The A major Scale is good for acoustic guitars because of the E, A, D and B open strings belonging to the scale. It has three sharps in it the F, C and G notes.
The Open Strings
The open string notes are the 6th string E=5, the 5th string A=root, the 4th string D=4th, the 2nd string B=2/9 and the 1st string E=5. The numbers after the notes tell you what scale degree they are. Check below for more detail on numbering.
These are notes that can be used freely in the A scale. They normally won’t clash with any other scale tones.
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Guitar Scales Method
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The A scale is made from two tetra-chords from the D and the E scale.
You will see the same notes and chords in the A, D and E scales.
Here Comes the Sun
This is the key for the Beatles song “Here Comes the Sun” written by George Harrison.
A Scale PDF Download
The first 4 notes of this scale came from the last 4 notes of the D major scale. The last 4 notes of are from the first 4 notes of the E major scale.
A Scale Tetra-Chords
The tetra-chord is a four note that makes up half a major scale. Major scales have two of these.
The first A scale tetra-chord comes from the last D scale tetra-chord and the second one comes from the first tetra-chord of the E major scale.
A 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.
This also refers to chords built from scales. When referring to chords the numbers are written in Roman numerals, upper case for major chords and lower case for minor chords.
A Major Notation-Tab
A Major Chords
A Major Chord Diagrams
A Major Key signature
This is how the beginning bar in sheet music will look if you are in the key of A. The sharp symbol is over the F line and the C and G spaces in the music staff.
This doesn’t mean the music won’t have other flats or sharps in it. They will be marked in the music itself. This means every note in the F, C and G position in the music staff will be sharp.
This helps keep the music easier to read as you get more flats or sharps in a key.
F♯, C♯, G♯