BandoChords helps you to find the correct buttons to a particular chord or scale on your bandoneon or your concertina.

LAYOUT:

The picture shows the layout of keyboard according to:

Bass: left side of instrument
Trebble: right side of instrument
Open bellows
Close bellows

If a chord is selected, the corresponding buttons are displayed in color:

RED: root note
BLUE: 3rd
ORANGE: 5th
YELLOW: additional note

CHORDS:
- Select chord root (C, C#, ... Bb, B)
- Select the type of the triad (major, minor, diminished, augmented, suspended)
- Select additional tones (minor seventh, major seventh, ninth, eleventh, sixth) or a power chord (without third)

If you're missing additional keyboard-layouts, contact me.

SCALES:

- Major
- Natural minor
- Harmonic minor
- Melodic minor (desc->natural)
- Hexatonic blues
- Heptatonic blues
- Nonatonic blues
- Gypsy major
- Gypsy minor
- Chromatic
- Dorian mode
- Phrygian mode
- Lydian mode
- Mixolydian mode
- Hitzaz
- Hitzazkiar
- Kourd/atar/todi
- Pentatonic mode 1
- Pentatonic mode 2
- Pentatonic mode 3
- Pentatonic mode 4
- Pentatonic mode 5

INSTRUMENTS:

144 Einheitsbandonion
142 bandoneon "Rheinische Lage"
152 bandoneon "Rhein. Lage" extended
152 bandoneon "Gebrüder Meinel"
154 bandoneon "Rhein. Lage" Villena
158 bandoneon "Rhein. Lage" Villena
130 bandoneon "Rheinische Lage"
110 bandoneon "Rheinische Lage"
100 bandoneon "Rheinische Lage"
88 bandoneon
64 bandoneon
196 bandoneon Kusserow-system
146 bandoneon Peguri-system
148 bandoneon Manoury-system
Bandoneon Atzarin-system
128 Einheitsbandonion
128 Einheitskonzertina
104 concertina Scheffler-system
78 concertina "Chemnitzer Lage"
76 concertina "Chemnitzer Lage"
20-Button C/G anglo concertina
20-Button G/D anglo concertina
30-Button C/G Wheatstone anglo concertina
30-Button C/G Jeffries anglo concertina
30-Button G/D Wheatstone anglo concertina
30-Button G/D Jeffries anglo concertina
40-Button C/G Wheatstone anglo concertina
English concertina, simplified
MacCann duet concertina 46 Lachenal
MacCann duet concertina 81 Wheatstone
Jeffries duet concertina 44-Button
Crane duet concertina 48-Button
Hayden duet concertina
Piano reference