On the Stradella bass system, diminished 7th chords are also minor 6th chords
AKA: D# diminished seventh, D#°, D#dim, D#dim7, D#dim7th, D#dim/6, D#dim(add6)
Green bass pattern: D#dim7(omit5) = D#m6(omit5)
Blue counter bass pattern: D#dim7
Notes:
D#, F#, A, C
D#dim button plays:
D#, F#, C (no A)
Intervals:
R, m3°, m5°, dim7°
Dim buttons play:
R, m3°, dim7° (no 5°)
Left hand:
Green bass pattern:
D#dim7(omit5), same as D#m6(omit5)
D# + D#dim
(E♭ + E♭dim)
Blue counter bass pattern: D#dim7
D# + Adim
(E♭ + B♭♭dim)
Fingering:
4 + 2