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Key

The tonal centre that organises a piece of music around a specific note and scale.

Category
fundamental
Origin

English

Length
183 words · 1 min read

About Key

A key defines the harmonic and melodic framework of a composition by establishing a tonic note and a corresponding scale — either major or minor. When a piece is said to be "in the key of C major," it means the note C functions as the gravitational centre, and the pitches used are predominantly those of the C major scale.

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