| 词条 | I–IV–V–I |
| 释义 |
In music, I–IV–V–I or IV-V-I is a common chord progression and cadence that, "unequivocally defines the point of origin and the total system, the key."[1] Composers often begin pieces with this progression as an exposition of the tonality:[1] It may be viewed as an abbreviated circle progression: "Along with motion toward the fifth (V), IV [the subdominant] appears as a corrective, depriving V (the dominant) of its independence and pointing it back in the direction of its origin [I]."[1] In the key of C, IV provides the note F{{music|natural}} and eliminates the possibility of G major, which requires F{{music|#}}.[1] The progression is also often used at the end of works and sections.[1] See also
Sources1. ^1 2 3 4 5 6 7 Jonas, Oswald (1982). Introduction to the Theory of Heinrich Schenker (1934: Das Wesen des musikalischen Kunstwerks: Eine Einführung in Die Lehre Heinrich Schenkers), p.23. Trans. John Rothgeb. {{ISBN|0-582-28227-6}}. {{Chord progressions}}{{DEFAULTSORT:I-IV-V-I}}{{music-theory-stub}} 2 : Cadences|Chord progressions |
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