Editing Major and minor (section)

==Intervals==
A major interval is one [[semitone]] larger than a minor interval. The words ''perfect'', ''diminished'' and ''augmented'' are also used to describe the [[Interval quality|quality of an interval]]. Only the intervals of a second, third, sixth, and seventh (and the [[compound intervals]] based on them) may be major or minor (or, rarely, diminished or augmented). [[Unison (music)|Unisons]], fourths, fifths, and octaves and their compound interval must be perfect (or, rarely, diminished or augmented). In Western music, a [[minor chord]] "sounds darker than a [[major chord]]".<ref name="Kamien">[[Roger Kamien|Kamien, Roger]] (2008). ''Music: An Appreciation'', 6th Brief Edition, p.&nbsp;46. {{ISBN|978-0-07-340134-8}}.</ref>