In music, we understand by modulation, the process by which, within the same work, we pass from one tonality to another.
It is important to note that we are obviously talking about tonal music.
Modulation arises from the need to give variety to a musical work, especially to those works of considerable length (remember that we said that tonality is like a color palette, therefore, by modulating, we are using more colors within the same work).
Said transition can be carried out more or less abruptly or, what is the same, more or less smoothly.
To carry out the modulation, three fundamental elements are needed: the outgoing tonality, the incoming tonality and the bridge (or pivots) chord(s).
Therefore, we can carry out this process in several ways.
Diatonic Modulation: This is the smoothest way to modulate from one key to another. The chords follow each other according to the diatonic scale, and there is a common chord between the two keys.
Chromatic modulation: not as smooth as diatonic, the chords are linked in such a way that one (or several) of their sounds run according to the chromatic scale.
Enharmonic modulation: it is a more abrupt way of modulating, but it allows us to go to more distant keys; one or more sounds of the chord are enharmonized (that is, changed to something else that sounds the same but is spelled differently).
And you, do you know any other way to modulate in music? Tell me in the comments!
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