All 10-note or More Scales and Chords

Scales with ten or more notes are not common, with the exception of the Chromatic Scale. Ten note scales can be combinations of two seven-note scales, such as Major/Minor mixed. Eleven-note scales are not used in any system I can find.

However, mathematically 55 different combinations of ten notes and 11 combinations of 11 notes are possible in 12-tone equal temperment with octave equivalence (the standard combination of music notes). With so many possibilities, the eight-note patterns are in several documents presented chromatically.

Nine-note patterns can theoretically be scales or chords. Nine-note chords are rare, and usually found in scored music for large groups, and not in the lead sheet notation shown here. These chords would be impossible on guitar without leaving out notes. Chords here are shown for completeness so that every possible note combination has at least one possible analysis. Alternate analysis is possible. All chords have multiple inversions.

Extended chords with alternate interpretations are shown twice. For example, in a 13th chord, the 5th, 9th, and 11th are optional, so C13(no5,9,11) is usually written C13. The first way is used to distinguish the differences among the 13th-chord types, but would typically not appear that way in a lead sheet.

Chords are in compressed single octave form. A Cadd9 chord CEGD is here CDEG. The add2, add4, or add6 chords are shown as add9, add11, or add13 (or as 6 chords).

Important patterns highlighted by color. Others are rare.

This is a draft from a larger project and may contain errors.

For an rough index of the entire project, see

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