Root key

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The root key is the main key used in a piece of music . In the European key system, the last triad of a piece is usually identical to the tonic of the basic key . The basic key is in most cases identical to the tonal center , unless the piece is permanently modulated .

Linguistic usage: "The piece is in ... major / minor ."

For pieces based on a mode ( church key ) or another scale, the accidentals (which, depending on the epoch, can also be completely absent) do not match the rules in the circle of fifths, as they are not major or minor scales. Likewise, it is not common for Hindemith, for example , to define a basic key by means of accidentals, since the music is relatively tonal , but rarely lingers in a tonal center over long stretches. The resulting notation would be more of a hindrance to reading.

Atonal music avoids the musical reference to a basic key.

See also