In music theory, a dominant seventh chord, or major minor seventh chord,[a] is a seventh chord, usually built on the fifth degree of the major scale, and composed of a root, major third, perfect fifth, and minor seventh. Thus it is a major triad together with a minor seventh, denoted by the letter name of the chord root and a superscript "7".[3] An example is the dominant seventh chord built on G, written as G7, having pitches G–B–D–F:
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In music theory, a dominant seventh chord, or major minor seventh chord,[a] is a seventh chord, usually built on the fifth degree of the major scale, and composed of a root, major third, perfect fifth, and minor seventh. Thus it is a major triad together with a minor seventh, denoted by the letter name of the chord root and a superscript "7".[3] An example is the dominant seventh chord built on G, written as G7, having pitches G–B–D–F:
Explanation: