har·​mo·​nist | \ ˈhär-mə-nist How to pronounce harmonist (audio) \
plural -s

Definition of harmonist

1a : a member of a school of theorists in ancient Greece who intensively investigated the mathematical basis for musical pitch relations
b archaic : a person who composes or performs music
c : a composer who emphasizes harmony above other musical elements
d : a musician skilled in performing or improvising harmony
e : a collection of songs or hymns a religious songbook titled The Devotional Harmonist
2 : one who shows the agreement or harmony of corresponding passages of different literary works (as the Gospels) editorial harmonists of the PentateuchInterpreter's Bible
4 usually capitalized [ Harmony, community in Pennsylvania + English -ist ] : harmonite

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History and Etymology for harmonist

harmony + -ist

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