High-G C6 Tuning

The same four notes as C6 restacked with a G on top: every string moves, the open strings still ring as Am7 or C6, and a bar spells the same eight chord types.

C6, restacked

The high-G C6 keeps C6's four notes, C, E, G and A, and restacks them: E G A C E G from the low string up, with a G on string 1 where C6 has its high E. Struck open it still rings as C6 or Am7, and a bar or a slant spells the same eight chord types as C6.

What changes is where the chords sit. With G, E and C on the top three strings, a C major triad lies across strings 1 to 3, where C6 has E, C and A, an A minor triad.

The retune

Every string moves, by two to four semitones. String 1 goes up three, from E to G, and the low string up four, from C to E.

Which high-G C6

The name covers more than one row. On eight strings it is often written with extra low strings; this page publishes the six-string row two independent sources print, E G A C E G.

What moves from C6

High-G C6 against C6, string by string, string 1 (the highest) first. Each move is the nearest one that reaches the new note.
String C6 High-G C6 Move
1 E G up 3 semitones
2 C E up 4 semitones
3 A C up 3 semitones
4 G A up 2 semitones
5 E G up 3 semitones
6 C E up 4 semitones

Six of the six strings move. Struck open, the strings ring as A m7 or C 6.

What a bar spells

Every chord type a straight bar or a slant spells in High-G C6 or in C6. A type is spelled on all twelve roots or on none, because the bar slides.
Chord type C6 High-G C6
Major yes yes
Minor yes yes
Power (5) yes yes
m7 yes yes
maj7sus2 yes yes
6sus2 yes yes
6 yes yes
m(add9) yes yes

High-G C6 spells eight chord types to C6's eight: zero gained, zero given up.

Where this row comes from