Use these medium gauge strings

Tune GDG - E(ADG)BE - Low
Tune DGB - EA(DGB)E - Middle
Tune GBD - EAD(GBE) - High

GDG is not the full chord but lacks the minor third B. This tuning offers a primal approach to playing excellent for playing in one key. Shuffle rhythms, walking bass, alternating bass fingerpicking, and early bottleneck slide. See CD 4.
Demo: https://youtu.be/KMdRMFN_5Ck

DGB is a full chord with the notes arranged 513. Music is all about relativity. Instead of having another CBG strung and tuned DGB, I often retune my GDG CBG to ADF#. This is the same 513 note arrangment but in the key of D. Due to relativity, the finger positions on the board are all the same. The CBG simply sounds in a different key. Excellent for playing in any one of the 12 keys of music using a "movable chord method". See CD 6
Demo: https://youtu.be/MczCaJnwz3k

GBD is also a full chord arranaged 135. This higher string configuration is great for lead work.
Demo: https://youtu.be/bstlafRBMO0

See CD 2 for 6 string. Notice how these are all parts of the full tuning: DGDGBD.
Demo: https://youtu.be/iJtkev3weag

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