Try this, get a pen a paper and follow these two simple rules,
1/the intervals for a Major scale are to be T-T-S-T-T-T-S, (T=Tone, S =Semitone) and must be followed at all times.
2/ when completed and conformed, the scale is cut in half, the top half becomes the basis for the new scale and has the next four notes to the sequence added ( we only use the first 7 letters of the alphabet)
So this relates to the notes C D E F G A B C.
C-D is a tone, D-E is a tone, E-F is a semitone, F-G is a Tone, G-A is a Tone, A-B is a Tone, B-C is a Semitone.
So this scale is constructed as T T S T T T S.
As we can see when we get to the G we start again on the A and progress to the C because we only use the first seven notes.
Because the frets on a bass are Semitones, we leave a space to form a tone, these spaces will either be sharps or flats relating to the letter either side of it, when it is related to a scale.
Cut the scale in half and we now have;
G A B C D E F G,
so this is a G scale, but not a G Major scale because the E-F is a semitone and F-G is a tone. F-G ( the 7th note of the scale ) has to be a tone.
Look at every aspect of the intervals and we see that it is that 7th note that can only be altered.
By raising it a semitone by adding a sharp it becomes F#.
Now E-F# is a tone, and F#-G is now a semitone.
So the scale now reads G A B C D E F# G, which is T T S T T T S, so this new scale conforms to a Major scale and can now be called G Major.
Cut the scale in half and we now have
D E F# G A B C D so this is a G scale but not a Major scale....
I will stop here.
Use the previous example to make this scale G Major by altering the intervals to suit using Sharps or Flats, then cut it in half, form a new scale, make that conform. Cut it in half to make a new scale, make that conform etc etc
When you finish you will have seven Major scales, see some pretty simple theory ideas and why they happen.
Once you have this idea down then constructing scales using flats is easy, as are minor, diminished, augmented, wholesome, chromatic etc. and like counting to one million, you know how to do it because you can construct units, tens, hundreds and thousands, but you do not need to actually do it and memorise it to know you can do it.
Constructing scales is easier than remembering them, because more will become apparent as you do it, and how apparent they become depends on how well you understand what you have done.
I will tell you know you will have cycle of 5ths, seven major keys. Seven keys signatures and more important how to order the sharps for those keys signatures and how many you use. You are now one idea away from seven minor scales and keys and one idea away from relative Major and minor ideas....and all this from constructing new scales from two simple rules rather than trying to learn many ideas and remember them.
This is what I mean when I talk about giving students foundations, when later in their education I talk about cycle of 5ths they all ready know it all...they just do not realise it till I tell them they do.....as will you if you do not already know about it.
So to anyone reading this and trying it, have fun and lets know how you got on and what you found.![]()
Thanks Man!
This Is great! Very mind expanding
So can i do this for every scale?
to study scales?

