Root (chord)

Root, in red, of a C major chord ( Play ). Note that the root is doubled at the octave.

Determining chord root from inversion Play .

Assumed root, Am7/B: A minor ninth chord without root and with B in the bass.[9]
Play Am9/B, Am7, then full Am9.

A comparison of the diminished 7th Play and dominant 7th[13] (♭9) Play chords.

In music theory, the concept of root denotes the idea that a chord could be represented and named by one of its notes. It is linked to harmonic thinking, that is, to the idea that vertical aggregates of notes form a single unit, a chord. It is in this sense that one can speak of a "C chord", or a "chord on C", a chord built from C and of which C is the root. The root needs not be the bass note of the chord: the concept of root is linked to that of the inversion of chords, itself deriving from the notion of invertible counterpoint.

单词	Root chord
释义	Root chord 英语百科 Root (chord) In music theory, the concept of root denotes the idea that a chord could be represented and named by one of its notes. It is linked to harmonic thinking, that is, to the idea that vertical aggregates of notes form a single unit, a chord. It is in this sense that one can speak of a "C chord", or a "chord on C", a chord built from C and of which C is the root. The root needs not be the bass note of the chord: the concept of root is linked to that of the inversion of chords, itself deriving from the notion of invertible counterpoint.
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Root chord

Root (chord)