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Let's use the adding tones to a shell method to create some different modes, and put them to work. We will use Em pentatonic as the shell and add F-C, F#-C, & F#-C# (in the gaps). As E minor type scales, each of these hold one of the 3 locations for minor chords in the Major key system. [iii, vi, ii in the order below]. There are other possibilities too. We are staying within the derivatives of the Major key system.
Em PentatonicHere's the shell. We are using octave 64 [octave between the 6 & 4 strings]. R- -b3-4-5- -b7 We will add 2's & 6's
E Phrygian+ F & C ↓ E-F-G-A-B-C-D-E E Phrygian 3rd mode of C E to E using the tones of C Major R-b2-b3-4-5-b6-b7
E Aeolian+ F# & C ↓ E-F#-G-A-B-C-D-E E Aeolian [Natural minor ↔ Relative minor] 6th mode of G E to E using the tones of G Major R-2-b3-4-5-b6-b7
E Dorian+ F# & C# ↓ E-F#-G-A-B-C#-D-E E Dorian 2nd mode of D E to E using the tones of D Major R-2-b3-4-5-6-b7
We've drawn some lines, but all of them could be connected. Use the chord wheel and meander around. Let your eyes fall onto next chord you will change to. Go in every order imaginable. Connect everything to everything.