Music Glossary: extensions

Use arps of extensions/upper-structures to imply richer harmony. more

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Seventh chords with added tensions 9, 11, 13; color tones requiring careful voice-leading. more

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Layer simple sustained chords with evolving intervals (9/11/13) via mod matrix. more

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Triads built on 9/♯11/13 imply extensions over 7th chords (e.g., over C7: E, G, A triads). more

More in the Improvisation category...