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Last issue we looked at the 2nd element of music, which is
harmony. We said there are six basic chord types:
1. Major. Composed of a root, 3rd,
and 5th.
2. Minor. Composed of a root,
flat 3rd, and 5th.
3. Augmented. Composed of a root,
3rd, and sharp 5th.
4. Diminished. Composed of a root,
flat 3rd, flat 5th, and double-flat 7th.
(Double-flat 7th is formal music language for the 6th.)
5. Half-Diminished. Composed of a
root, flat 3rd, flat 5th, and flat 7th.
6. Dominant Seventh. Composed of a
root, 3rd, 5th, and a flat 7th.
Here is how these six chord types look on the keyboard, all
built on C:
Other notes can be added to these basic triads, creating an
extension, or extended chord.
The six basic
extensions are:
1. 6th. The 6th scale note.
2. 7th. The 7th scale note
flatted.
3. Major 7th. The 7th scale note.
4. 9th. One octave higher than the
2nd scale note.
5. 11th. One octave higher than the
4th scale note.
6. 13th. One octave higher than the
6th scale note.
We'll take
these extensions up next time in detail. |
