Bb setup

We have actually 3 similar diatonic scales

First Bb major:

Bb-C(on C# key)- D- Eb- F-G-A- Bb  


If we only use one of the red tones at a time (avoid the wolf fifth (high)C-G), we will get a very pure feeling with cluster possibilities. 
The tritonus is as pure as possible.
Notice that the  minor third C-Eb is not pure , but can be used.



Then we have Eb major.

Eb-F -G-Ab-Bb-C(the lower one)-D-Eb

Only use one red tone (avoid the wolf  F-(low)C). The minor third F-Ab is not pure.


The nice thing is that on the other side of the Csus4 division (from the view of circle of fifths)  we will find exactly the same possibilities in G major. (do not play A and E at the same time). 
Only use one red tone at a time.



G-A-B-C(the lower one)-D-E-F#-G 

To be familiar with this setup in Bb, it is very useful to play these scales and chords. 
Also highly recomnended is to play 2 melodic minor scales with associated chords. 

First in G minor.

 Don`t use A and E at the same time Avoid ii -chord

 G-A-Bb-C-D-E-F#-G 

Try also  C  minor, avoid F-C at the same time . Avoid IV -chord

Here we can play I-ii-V-I (C(m)-Dm-G-C(m)), pure.

C-D-Eb-F -G-A-B-C

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