根音

在音樂理論中，我們稱一個和弦的根音，是作為該和弦建立在其之上的那個音符。舉例來說，拿C當根音的三和弦用的三個音會是C-E-G。基本上，和弦的名稱便是以根音來命名的。因此，以C為根音的三和弦稱作C和弦。根音時常跟音階的主音混淆，後者是用來代表音階的音符，而不是和弦的音符。[1]

參照
  1. Palmer, Manus, and Lethco (1994). The Complete Book of Scales, Chords, Arpeggios and Cadences, p.6. ISBN 0-7390-0368-2. "The root is the note from which the triad gets its name. The root of a C triad is C."
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