Meaning of "Third" in Music
In music theory, the term "third" refers to a specific interval between two notes. It is called a third because it is the third note in a scale when counting from the root note. The major third and the minor third are the two most commonly occurring thirds in music.
- The major third is a musical interval that spans four semitones or two whole steps. It is called "major" because it is larger than the minor third. For example, the interval from C to E is a major third because E is four semitones above C.- The minor third is a musical interval that spans three semitones or one and a half steps. It is called "minor" because it is smaller than the major third. For example, the interval from C to E♭ is a minor third because E♭ is three semitones above C.
These intervals play a significant role in determining the quality of chords. Chords with a major third interval between the first and second notes are generally major chords, while chords with a minor third interval have a minor quality.
It's important to note that the term "third" can also have other meanings in different musical contexts, such as referring to vocal parts or specific notes in a melody However, in the context of intervals, the term "third" specifically refers to the interval between two notes.
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