Diminished chords (dim triads) consist of a Root, a minor 3rd, and a diminished 5th.
Standard Stradella bass system allows you to play dim7th(omit 5th) chords by pushing just one button on the 6th column.
A dim7th chord consists of a Root, a minor 3rd, a diminished 5th, and a diminished 7th but on almost all accordions, the diminished chord buttons don’t play the 5th so we have just: Root, minor 3rd, and diminished 7th.
A minor 6th chord consists of: Root, minor 3rd, 5th, 6th.
As I said before, on standard bass accordions, the diminished chords play the Root, the minor 3rd, and the diminished 7th and omit the 5th.
A diminished 7th interval is also a Major 6th interval so we have Root, minor 3rd, 6th which is a minor 6th(omit5th) chord.
In order to play a complete minor 6th chord you should play the Root + the minor chord + the diminished chord but is very uncomfortable and adding a chord just to get a 5th (which it doesn’t add any tension) is not practical. So, to play a minor 6th chord, push just the root + the diminished chord button.
AKA: A diminished seventh, A°, Adim, Adim7, Adim7th, Adim/6, Adim(add6) Adim7 Accordion Chord Chart Green bass pattern: Adim7(omit5) = Am6(omit5) Blue counter bass pattern:… Read More »How to play an Adim7 chord on Accordion
AKA: A# diminished seventh, A#°, A#dim, A#dim7, A#dim7th, A#dim/6, A#dim(add6) A#dim7 Accordion Chord Chart Green bass pattern: A#dim7(omit5) = A#m6(omit5) Blue counter bass pattern:… Read More »How to play an A#dim7 chord on Accordion
AKA: Bb diminished seventh, Bb°, Bbdim, Bbdim7, Bbdim7th, Bbdim/6, Bbdim(add6) Bbdim7 Accordion Chord Chart Green bass pattern: Bbdim7(omit5) = Bbm6(omit5) Blue counter bass pattern:… Read More »How to play a Bbdim7 chord on Accordion
AKA: B diminished seventh, B°, Bdim, Bdim7, Bdim7th, Bdim/6, Bdim(add6) Bdim7 Accordion Chord Chart Green bass pattern: Bdim7(omit5) = Bm6(omit5) Blue counter bass pattern:… Read More »How to play a Bdim7 chord on Accordion
AKA: C diminished seventh, C°, Cdim, Cdim7, Cdim7th, Cdim/6, Cdim(add6) Cdim7 Accordion Chord Chart Green bass pattern: Cdim7(omit5) = Cm6(omit5) Blue counter bass pattern:… Read More »How to play a Cdim7 chord on Accordion
AKA: C# diminished seventh, C#°, C#dim, C#dim7, C#dim7th, C#dim/6, C#dim(add6) C#dim7 Accordion Chord Chart Green bass pattern: C#dim7(omit5) = C#m6(omit5) Blue counter bass pattern:… Read More »How to play a C#dim7 chord on Accordion
AKA: Db diminished seventh, Db°, Dbdim, Dbdim7, Dbdim7th, Dbdim/6, Dbdim(add6) Dbdim7 Accordion Chord Chart Green bass pattern: Dbdim7(omit5) = Dbm6(omit5) Blue counter bass pattern:… Read More »How to play a Dbdim7 chord on Accordion
AKA: D diminished seventh, D°, Ddim, Ddim7, Ddim7th, Ddim/6, Ddim(add6) Ddim7 Accordion Chord Chart Green bass pattern: Ddim7(omit5) = Dm6(omit5) Blue counter bass pattern:… Read More »How to play a Ddim7 chord on Accordion
AKA: D# diminished seventh, D#°, D#dim, D#dim7, D#dim7th, D#dim/6, D#dim(add6) D#dim7 Accordion Chord Chart Green bass pattern: D#dim7(omit5) = D#m6(omit5) Blue counter bass pattern:… Read More »How to play a D#dim7 chord on Accordion
AKA: Eb diminished seventh, Eb°, Ebdim, Ebdim7, Ebdim7th, Ebdim/6, Ebdim(add6) Ebdim7 Accordion Chord Chart Green bass pattern: Ebdim7(omit5) = Ebm6(omit5) Blue counter bass pattern:… Read More »How to play an Ebdim7 chord on Accordion
AKA: E diminished seventh, E°, Edim, Edim7, Edim7th, Edim/6, Edim(add6) Edim7 Accordion Chord Chart Green bass pattern: Edim7(omit5) = Em6(omit5) Blue counter bass pattern:… Read More »How to play an Edim chord on Accordion
AKA: F diminished seventh, F°, Fdim, Fdim7, Fdim7th, Fdim/6, Fdim(add6) Fdim7 Accordion Chord Chart Green bass pattern: Fdim7(omit5) = Fm6(omit5) Blue counter bass pattern:… Read More »How to play an Fdim7 chord on Accordion
AKA: F# diminished seventh, F#°, F#dim, F#dim7, F#dim7th, F#dim/6, F#dim(add6) F#dim7 Accordion Chord Chart Green bass pattern: F#dim7(omit5) = F#m6(omit5) Blue counter bass pattern:… Read More »How to play an F#dim7 chord on Accordion
AKA: Gb diminished seventh, Gb°, Gbdim, Gbdim7, Gbdim7th, Gbdim/6, Gbdim(add6) Gbdim7 Accordion Chord Chart Green bass pattern: Gbdim7(omit5) = Gbm6(omit5) Blue counter bass pattern:… Read More »How to play a Gbdim7 chord on Accordion
AKA: G diminished seventh, G°, Gdim, Gdim7, Gdim7th, Gdim/6, Gdim(add6) Gdim7 Accordion Chord Chart Green bass pattern: Gdim7(omit5) = Gm6(omit5) Blue counter bass pattern:… Read More »How to play a Gdim7 chord on Accordion
AKA: G# diminished seventh, G#°, G#dim, G#dim7, G#dim7th, G#dim/6, G#dim(add6) G#dim7 Accordion Chord Chart Green bass pattern: G#dim7(omit5) = G#m6(omit5) Blue counter bass pattern:… Read More »How to play a G#dim7 chord on Accordion
AKA: Ab diminished seventh, Ab°, Abdim, Abdim7, Abdim7th, Abdim/6, Abdim(add6) Abdim7 Accordion Chord Chart Green bass pattern: Abdim7(omit5) = Abm6(omit5) Blue counter bass pattern:… Read More »How to play an Abdim7 chord on Accordion