Harmony

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Spotlight

Good Vibrations (A Life of Harmony) (Garry Kvistad, TEDxNavesink)

Reference

Dictionary

harmony : (a) the combination of simultaneous musical notes in a chord (b) the structure of music with respect to the composition and progression of chords a song with complicated harmonies and rhythms (c) the science of the structure, relation, and progression of chords (d) pleasing arrangement of parts : congruence a painting exhibiting harmony of color and line (e) internal calm : tranquility a period of relative harmony (f) an interweaving of different accounts into a single narrative — Webster

Free Dictionary, Wiktionary, OneLook

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

Encyclopedia

Harmony, in music, is the process by which the composition of individual sounds, or superpositions of sounds, is analysed by hearing. Usually, this means simultaneously occurring frequencies, pitches (tones, notes), or chords. — Wikipedia

Encyclopædia Britannica

Our Musical Universe (Matt Russo, TEDxUofT)

Preservation

Museum

New gallery exhibit dedicated to harmony and balance (Penn State)

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library