These note interval qualities could be diminished, minor, major, perfect and augmented.īelow is a table showing the note interval qualities for the most common 6th chords, together with the interval short names / abbrevations in brackets. In the same way that the entire chord itself has a chord quality, the intervals representing the individual notes within that chord each have their own quality. Then there is one note interval to describe the 2nd note, and another to describe the 3rd note of the chord, and finally another interval for the 4th chord note. The root note is always the 1st note (note interval 1 in the above diagram) of the major scale diagram above.

It also shows how the 6th chord qualities are related to the triad chord qualities they are based on.Įach individual note in a 6th chord can be represented in music theory using a note interval, which is used to express the relationship between the first note of the chord (the root note), and the note in question.

This step defines the note intervals for each chord quality, including the intervals for the B-flat minor 6th chord.

B flat chord on piano