The relationship between chords and scales
Scales are typical known as more theoretical than chords. Yes, there are some more notes to memorize, but it's nevertheless the same kind of logic.
The difference between chord and scales are in simplifying terms:
- The chords are in general consisting of fewer notes.
- The chords are to make the harmonic, while the scales are to make the melody.
We know that a C major chord consists of the notes C, E and G. To get a C major scale we just add D, F, A and B.
The thing is, all chords with the notes C, D, E, F, G, A and B will sound fine when put together in chord progressions. C, Dm, Em, F and so on consist all of the seven notes in the C major scale.
It's also good to know which notes that belongs to the scales of the chords if you want to use embellishments in your playing. (Watch a video with guitar embellishment).
So, you can say that chords are a group of tones belonging to a scale. When you know the scale and how the notes are arranged on the fretboard you can catch on to the related chords.
The scales are often easy to learn on the guitar because they are of the same structure, often referred to as a "box", and can be moved to another fret (such as barre chords). All scales in the same category have the same interval formula, this becomes even more apparent if you are learning piano scales.
Chords and scales are often combined in a musical piece. Sometimes we say that we play a scale over a chord. This means that the rhythm guitar for example plays the G7 chord, and the lead guitar is playing the G pentatonic scale. So when the chord changes next time, the scale changes to.
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