It is a slight variation of the panduri-tambouras-bouzouki tuning of post 160 and of bouzouki panduri-panduri tuning of post 165 is the next bouzouki panduri-tuning.
It is based on the idea of finger-picking ina 6-string guitar.In other words that
1) The lower 2 strings are to be used as bass
2) The 4th 3rd and 2nd string (counting from higher pitch) are to be used for major-minor chord triads
3) The highest pitch string is to be used for solo
Thus for a privilege scale e.g. C major
1) The bass will be C2-G2
2) The C major chord will be C3-E3-G3
3) The solo highest string will be C4
Thus in total
C2-G2-C3-E3-G3-C4
which is an open C major chord
Similarly for open D major
D2-A2-D3-F#3-A3-D4 (or for D minor D2-A2-D3-F3-A3-D4)
Which is a Bouzouki at D2-A2-D3 and a panduri at D3-F3-A3 and at F3-A3-C4. The advantage is that the 4-strings D3-F3-A3-C4 allow for two rows of normal forms major-minor chords for accompanying at higher range.
Similarly for open F major
1) The lower 2 strings are to be used as bass
2) The 4th 3rd and 2nd string (counting from higher pitch) are to be used for major-minor chord triads
3) The highest pitch string is to be used for solo
Thus for a privilege scale e.g. C major
1) The bass will be C2-G2
2) The C major chord will be C3-E3-G3
3) The solo highest string will be C4
Thus in total
C2-G2-C3-E3-G3-C4
which is an open C major chord
Similarly for open D major
D2-A2-D3-F#3-A3-D4 (or for D minor D2-A2-D3-F3-A3-D4)
Which is a Bouzouki at D2-A2-D3 and a panduri at D3-F3-A3 and at F3-A3-C4. The advantage is that the 4-strings D3-F3-A3-C4 allow for two rows of normal forms major-minor chords for accompanying at higher range.
Similarly for open F major
F2-C2-F3-A3-D4-F4 (or for F minor F2-C2-F3-A#3-D4-F4 )
Similarly for open E major
E2-G#2-E3-G#3-B3-E4 (or for E minor E2-G2-E3-G3-B3-E4 )
Similarly for open G major
G2-D2-G3-B3-D4-G4 (or for G minor G2-D2-G3-Bb3-D4-G4 )
Similarly for open E major
E2-G#2-E3-G#3-B3-E4 (or for E minor E2-G2-E3-G3-B3-E4 )
Similarly for open G major
G2-D2-G3-B3-D4-G4 (or for G minor G2-D2-G3-Bb3-D4-G4 )
As alternative
1) The lower 1 strings are to be used as bass
2) The 5th 4th and 3rd and 2nd string (counting from higher pitch) are to be used for major-minor chord triads
3) The 2 highest pitch string is to be used for solo
Thus for a privilege scale e.g. F major
1) The bass will be C2
2) The F major chord will be F2-A2-C3
3) The solo highest strings will be E3-G4
Thu in total C2-F2-A2-C3-F3-F4
which is an open F major
1) The lower 1 strings are to be used as bass
2) The 5th 4th and 3rd and 2nd string (counting from higher pitch) are to be used for major-minor chord triads
3) The 2 highest pitch string is to be used for solo
Thus for a privilege scale e.g. F major
1) The bass will be C2
2) The F major chord will be F2-A2-C3
3) The solo highest strings will be E3-G4
Thu in total C2-F2-A2-C3-F3-F4
which is an open F major