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Close key

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Audio: close key (0:08)

Close key
Figure: close key

CIRCLE OF FIFTHS
(F#)Gb Db Ab Eb Bb F C G D A E B F#(Gb)
Table: close key

close key plays a melody and a harmony on ocarinas. The close key figure shows the score consists of nine modulations through major keys. Six are close key modulations and three are distant key modulations. The close key table is a repeat of the circle of fifths table.

A close key or closely related key shares all but one of its notes with another key.

Close keys are adjacent to each other in the circle of fifths. Every key has two close keys. The key of C major has two closely related keys, F major and G major, for example

Close key modulation uses 9 of the 12 notes in the chromatic scale. It expands the musical horizon from 7 related keys to 21 close keys. For these reasons, lots of notes to choose from, lots of keys to play with, close key modulation is a popular and common type of modulation.