Editing All fifths tuning (section)

==Relation with all-fourths tuning==
[[File:All fourths tuning in the chromatic circle.png|right|thumb|The consecutive [[open&nbsp;note]]s of all-fourths tuning are spaced apart by five semitones, reversing the ordering of all-fifths tuning (with seven semitones).]]
{{Main|Regular tunings#Left-handed involution}}

All-fifths tuning is closely related to [[all-fourths tuning]]. All-fifths tuning is based on the [[perfect&nbsp;fifth]] (the [[interval (music)|interval]] with seven [[semitone]]s), and all-fourths tuning is based on the [[perfect&nbsp;fourth]] (five semitones). The perfect-fifth and perfect-fourth intervals are [[inverse interval|inversions]] of one another, and the chords of all-fourth and all-fifths are paired as [[inverted chord]]s. Consequently, chord charts for all-fourths tunings may be used for left-handed all-fifths tuning.<ref>{{harvtxt|Sethares|2001|p=53}}</ref>