Minor 9th Chords... m9
a minor 7th with an added 9th
A minor 9th chord is a musical interval spanning an octave plus 1 semitone - 13 semitones in total. It can be written as m9 or -9, with m9 the most commonly used. It can also be described as a minor 7th with an added 9th.
A minor 9th chord is a chord having a root, a minor third, a perfect fifth, a minor 7th and a major 9th. It is considered a compound interval as it spans more than an octave.
The chord formula for a minor 9th chord is 1 - ♭3 - 5 - ♭7 - 9
Featured practice song for this session is 'Copacabana' by Barry Manilow. There are nine m9 chords here sharing the same barre-chord shape but played on different frets. This song is fairly 'heavy-going' with brisk chord changes which can be fairly challenging. If you are interested in m9 chords, you will appreciate what this song has to offer... intermediate level.
Example: Calculating a Gm9 chord
- m9 Chords consist of the 1st,♭3rd, 5th ♭7th and 9th notes of the Major Scale
- 'G' chords, are based on the scale of G major which has 1 sharp (F#). The scale reads as follows: G - A - B - C - D - E - F# - G
- As we are looking at a 9th chord, we have to extend the scale for an extra tone (2 semitones) The scale reads as follows: G - A - B - C - D - E - F# - G - A
- Formula: 1 - ♭3 - 5 - ♭7- 9
- Substitute the notes of the scale into the formula: 1=G / ♭3=♭B / 5=D / ♭7=F / 9=A
- Gm9 reads as follows: G - B♭- D - F - A
Minor 9th Chords Table