thirteenth

The 13th note of the Major scale is simply the 6th note of the scale, up one octave. We refer to it as the 13 (instead of 6) because generally speaking, the 13th note is played in a higher octave (although this is a very general guideline and not a rule).

thirteenth / 13th / diatonic-13th A diatonic interval which traverses 12 steps in a diatonic scale, and covers a pitch distance bounded by 13 nominals inclusively, an octave plus a 6th.

Therefore, the shortcut to playing a 13 chord is to play the root of the chord in the left hand (G), and in the right hand, go down a full step from the root (to F) and play a major-7th chord based on that. For another example, we could play a D13 as D in the left hand, and a C major-7th chord in the right hand.

The flat 13 chord extension offers lots of interesting possibilities. Added to a minor 7 chord it describes a minor scale (b3, b6/b13, b7). On a dominant chord it's ambiguous – not entirely a tension chord or a resolution chord. With a Major 7 chord it is colourful but not overtly dissonant.

Some Quick G13 Chord Theory The '13 note' is the same as the '6 note' of the scale, but the 13 implies that the 'b7 note' is also included. The G13 chord is made up of G, B, D, F and E. The 9th of the scale is sometimes included, but because guitarists have a limited number of strings available, it is often left out.

The C major thirteenth chord is a 6-note chord consisting of the notes C, E, G, B, D and A. You can see these notes highlighted in the interactive piano chart below. The chord itself is often abbreviated as Cmaj13.

Major 13 chord can also be seen as a major 9th chord with two supplementary notes (11 & 13) or a major 11 chord with a 13th added. The basic formula is root (1), third (3), fifth (5) and seventh (7). The notes in yellow in the chart below can be added to the basic structure of a major 7th chord.

An augmented octave is 13 half steps. That's it for the first group of music intervals. The modifiers for the next group are major, minor, diminished and augmented.

A 13-sided polygon, sometimes also called the triskaidecagon.

(The “add13” suggests a voicing where the A is an octave higher than 6, thus C6 is a far more common chord symbol.) “Add” is also used for minor and major seconds, and perfect and augmented fourths when these aren't meant to be suspensions.

After the letter name now you might be asking how do I construct these 13th chords major 13th chords are built off of the major scale. And include the following scale degrees root.

Western music has settled on a twelve note system and this is what we are culturally attuned to. These twelve notes have not even been the same twelve notes, as there are various systems of tuning these notes, called temperament. The current system of temperament in vogue is equal temperament.