Utilities Interval


Latin intervallum space between ramparts, interval, from inter- + vallum rampart. Intervals describe the distance of two tones.

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Pure, Minor and Major Intervals

We differentiate pure and minor / major intervals.

Pure Intervals
Unison, Fourth, Fifth and Octave. These intervals are in the basic form pure intervals.

Minor / Major Intervals
Second, Third, Sixth and Seventh. These intervals appear in two basic forms.

Diminished and Augmented Intervals

Diminished Intervals
Pure and minor intervals are diminished by lowering the above tone or by heightening the lower tone.

Augmented Intervals
Pure and major intervals are augmented by heightening the above tone or lowering the lower tone.

Consonant and Dissonant Intervals

Consonant Intervals
Melodious intervals are denoted as consonant intervals.
Unison, Octave, Fifth, Fourth, Major and Minor Third.

Dissonant Intervals
These intervals sound chafing, odd and disharmonious.
Minor Second, Major Second, Diminished Fifth, Augmented Fifth, Seventh


Description of the Consonant and Dissonant Intervals

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