Editing Enharmonic equivalence (section)

{{Short description|Distinct pitch classes sounding the same}}
{{distinguish|Anharmonic|Inharmonic}}
{{Technical|date=September 2019}}

In music, two written notes have '''enharmonic equivalence''' if they produce the same [[pitch (music)|pitch]] but are [[musical notation|notated]] differently. Similarly, written [[Interval (music)|intervals]], [[Chord (music)|chords]], or [[key signature]]s are considered '''enharmonic''' if they represent identical pitches that are notated differently. The term derives from Latin {{langx|la|enharmonicus|label=none}}, in turn from [[Late Latin]] {{langx|la|enarmonius|label=none}}, from Ancient Greek {{Langx|grc|{{math|ἐναρμόνιος}}|label=none}} ({{transliteration|grc|enarmónios}}), from {{Langx|grc|{{math|ἐν}}|label=none}} ('in') and {{Langx|grc|{{math|ἁρμονία}}|label=none}} ('harmony').