So wait, whats the use of circle of fifths? And the chord construction thing, does it only apply to the Major scale (1 3 5, and so on and so forth)? Also, how are the scales relative to a chord progression? Like for example you're on the key of Cmaj, how would I know which scales I can use apart from Cmaj and Amin.
And thanks for the tip! great help.
In my opinion, the circle of fifths is a very good way to remember intervals and sometimes progressions as well. You can look this up " John coltrane cycle ".
With regards to chord construction. It applies to a lot of scales.
For example you can take any random scale. and apply the formula.
Lets take the Cmaj Scale.
its a 1 3 5 for a maj chord.
So playing the notes C E G will give you the Cmaj chord.
You can actually go out of the box and create your own formulas
Like you can have a 1 3 5 6 (C E G A) which will be the equivalent of an Cmaj6 because of the added 6 in the chord.
However, there are some pointers to note. The 3rd will determine if the chord will be major or minor or Suspended.
1 3 5 = Major Chord
1 b3 5 = Minor Chord
1 4 5 = Sus4 chord
1 2 5 = Sus2 chord.
The third gives the chord its special sound so actually you can play around with a scale till your happy. But remember! If you think what you're doing sounds nice and you can't find any theory on it, just ignore the theory, what matters is that you feel the thing you are playing is nice.
With regards to playing different scales in Cmaj and Amin, you can actually think in terms of chords (Arpeggios). This is just one of the many ways to think so this is very debatable
Lets say you have a chord progression Cmaj, Amin, Fmaj, Gmaj.
You play around with the notes of the chords. In other words, Arpeggios. Play around with the Arpeggios and add notes here and there to make colorful sounds. Arpeggios are basically broken up chords, its the same as 1 3 5.
Hence over Cmaj, you could emphazise on C E G
Over Amin, you could emphazise on A C E
Over Fmaj, you could emphasize on F A C
Over Gmaj, you could emphasize on G B D
and if you noticed, all the notes here can be found in Cmaj. I think it was mentioned in the earlier post. It'll be great if you could start on the chordtones and end on the chordtones as well. it'll make a melody, solo quite tasteful.
Hoped this helped!