Reference

Reference pages the other sections lean on: intervals, the relations between keys, key signatures, the Nashville number system, the Picardy third, and how a capo works (the chart itself stays under Capo).

• ReferenceIntervals12 intervals, with compound extensions
• ReferenceCircle of fifths12 keys, relative minors, order of accidentals
• ReferenceKey signatures15 major keys, 15 minor keys
• ReferenceNashville number systemdegrees 1-7 in all 12 keys
• ReferencePicardy thirdmajor close in a minor key
• ReferenceCapo — how it worksconcept; chart is separate

How the pages relate

• Intervals gives the distances. Every other page on this site is built from them.
• Circle of fifths places the twelve keys in order of their accidentals.
• Key signatures lists the accidentals of each key, including the three enharmonic signatures that do not appear elsewhere on the site.
• Nashville number system names the chords of a key by degree, which is the same information as the chord families listed on each key page.
• Picardy third is the major tonic that closes a piece written in a minor key.
• Capo — how it works is the concept; the capo chart (under Tunings) is the tool.

Related

• ReferenceIntervals12 intervals, with compound extensions
• ReferenceCircle of fifths12 keys, relative minors, order of accidentals
• ReferenceKey signatures15 major keys, 15 minor keys
• ReferenceNashville number systemdegrees 1-7 in all 12 keys
• ReferencePicardy thirdmajor close in a minor key
• CapoCapo chart12 capo positions × 24 target keys
• PageArtistsevery artist page, A-Z
• HubEncyclopedia of chord names528 chord names, A–Z

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Section: Reference · Theory Atlas