: Often used to explore inside/outside improvisation techniques and hand independence.
: Simple chords are replaced with major 7th , minor 7th , and extended chords (9ths, 11ths, and 13ths), adding color and depth. Beatles for Jazz Piano arrangements - pop-sheet...
: Favored for its play between major and minor resolutions, often enhanced with atypical drop 2 voicings or 4th voicings . and extended chords (9ths