Answer:
Definition of harmonic interval
: the pitch relation between simultaneous musical tones
Harmonic Intervals
An interval is the distance (in scale steps) between two pitches. A harmonic interval occurs when two notes are played at the same time. Intervals can also be melodic, meaning that the two notes are played in sequence, one after the other.
what is Third interval?
A third is an interval equal to three scale degrees that is most commonly major or minor*: Major Third (M3) Equal to four half steps; the distance between G—B is a major third.
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