Tertzdecimacchords

What chords exist specifically for “accordophiles”?

Tertzdecimacchord

This is a chord consisting of seven notes arranged in thirds.

Like all previously considered types of chords, the third decimal chord is built by adding (on top) a third to the chord, which includes one sound less. In this case, the third is added to the undecimal chord. As a result, a terdecimal interval is formed between the extreme sounds, which became the name of the chord.

The third decimal chord is indicated by the number 13. For example: C13. As a rule, this chord is built on the 5th degree (dominant).

Here is an example of a G13 chord:

Figure 1. Tertzdecimac chord (G13)

Due to the fact that the chord contains all seven steps, the chord contains almost no modal gravity, it sounds somewhat relaxed, indefinite.

We add that chords of this type are used extremely rarely.

Permissions of the tertzdecimal chord

The big third decimal chord (there is a big third decima, a big nona in the composition of the chord) resolves into a major tonic triad. The small third decimal chord (as part of a chord, a small third decima and a small non) resolves into a minor tonic triad.

Tertzdecimal chord inversions

Tertzdecimal chord inversions are not used.

Results

You got acquainted with the third decimac chord.