The Big Six Core Chords - Level Four series of chords that build on the Bix Six Core Chords and form the foundation for ALL your jazz chords include: Alternations and Extensions to the level I, II and III chords.
Main Category:Chords
Main Instrument:Ukulele
6 August 2026
The Big Six Core Chords - Level Four
The Big Six Core Chords - Level Four series of chords that build on the Bix Six Core Chords and form the foundation for ALL your jazz chords include: Alternations and Extensions to the level I, II and III chords.
1
Upper Partials and Chord Extensions
A chord extension or upper partial are the chord tones above the octave and not one of the fundamental 4-part chord tones. These are the ninths, elevenths and thirteenths of chords.
2
Chord Alterations
The "fifth", "ninth", "eleventh" and "thirteenth" of a chord can be altered. Alterations can be applied 1, 2 and 3 at a time. The alternations give a chord added color or tension.
