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Scale Basics
Major
& Minor Guitar Scale Basics
|
| Root |
3rd |
5th |
| 1 |
3 |
5 |
This is known as the major triad, the basis of major scales.
The root marks the 1st tone of our scale, and tells us the key in which the scale is being played. Whichever note the root lies is the key of the scale. This is why it's important to know the notes on the fretboard.
The 3rd is also known as the major 3rd. This is the tone that makes our scale a major scale!
The 5th is considered a neutral tone, because it is part of both major and minor triads (triad = 3 tones). In some scales, however, the 5th will be flat or even sharp (b5 and #5 respectively), so look out for that, as it tells you what type of chord it will work over.
So how will you know if the scale contains these tones? Well, if you're using this site to learn scales, the tones are clearly marked. For example, what does the scale diagram below tell us?...
There is a root (1) and 3rd (3) and 5th (5) present in that scale, so we know it's a major scale. There is also an indication that this particular example is being used at the 3rd fret (the position of its lowest root note). Therefore, the scale is in the key of G major, because the note G lies at the 3rd fret on the low E string.
Another question you might have is "why do I need to know if it's a major scale?"
A major scale can only be played over major chords and certain major key progressions. See, just like scales, if the chord you're playing the scale over (in a solo for example) contains the root and 3rd, it will be compatible because both the scale and chord will be major.
This is the intrinsic relationship between scale tones and chord tones you'll come to appreciate. Once fully mastered, you'll be able to apply scales over the entire fretboard for fluid and effortless soloing.
So, in this example, our G major scale will work over a G major chord. It may also work over certain G major key progressions. More on that another time!
Minor scale basics
Just like with major scales, there are tones present in minor scales that tell us they're compatible with minor chords and certain minor key progressions.| Root |
flat 3rd |
5th |
| 1 |
b3 |
5 |
This is known as the minor triad, the basis of minor scales.
The minor 3rd (also known as a flat 3rd or b3 for short) is the tone which makes a scale or chord minor.
The 3rd is "flat" or "minor", because it's been lowered by a semitone/half step (the equivalent of one fret) from its original major scale position. Flats and sharps are always referenced against the major scale, even in minor scales.
Here is just one type of minor scale, known as natural minor...
So you can see there is a minor 3rd present in that scale. The other flat tones - b6 and b7 - are also referenced against their natural major scale positions, but these tones don't determine if the scale is major/minor. Only the 3rd does that!
Get to know this relationship between the root of a scale and its 3rd, whether major or minor 3rd. The sound of this interval should be engrained in your mind, no matter which key you play it in.
It's one of those things where you only truly realise how important this knowledge is the more you progress.
In the scales section, there are several major and minor scales to learn (I'm adding new lessons all the time), so when it comes to playing over major and minor chords, you'll have a good selection of scales to choose from.
What about the other tones in these scales?
Aside from the root and 3rd, scales include other tones that "colour" that basic major/minor flavour. Each scale is different, and the more you play around with different scales, the more your ear will pick up on these surrounding tones. These tones are what give the scale its unique flavour, beyond simply major/minor.For example, here's the Spanish scale (also known as Phrygian Dominant)...
Notice the major 3rd present there, so we know it's a major scale and will work over major chords. However, there is also a flat 2nd (b2) which gives it a very distinctive flavour. We'll look more in depth at these scales in their individual lessons.
So, a lot to think about, but it's useful to be introduced to this stuff early on, so you're prepared for learning scales. Don't just learn them as patterns on the fretboard - understand their ingredients! It is only by doing this that you will truly understand how scales and chords work together as part of the same foundation.
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