major
C Major
C · E · G
3suggested constellations
Root position 1First inversion 0Second inversion 2
Mountain Dulcimer Fretboard Maps
Explore major, minor, diminished, and augmented triads across tunings. Circles mark available chord tones; teal paths mark suggested learning constellations, not every possible fingering.
Current tuningD–A–Dtop to bottom: bass · middle · melody
01
Choose a tuning
Adds a separately drawn and independently tuned fourth string. Default: D–A–D–D. In D–A–D–C, the C is below the neighboring D.
02
Choose your frets
Frets 6.5 and 13.5 begin on and may be switched independently. Other chromatic frets begin off.
12 fingerboards selected
Triad chord atlas
Root tones are filled and marked R. Every fretted circle sits just behind its fret. Additional chromatic fret lines appear in rust. Lines appear only for varied, octave-repeatable families. They are optional memory aids: learn the shapes, then forget the shapes.
R Root3 Third (3 or ♭3)5 Fifth (5, ♭5, or ♯5) Suggested learning constellation
major
C♯ Major
C♯ · E♯ · G♯
0suggested constellations
Chord tones are present, but no suggested three-string constellation contains all three chord tones.
major
D Major
D · F♯ · A
6suggested constellations
Root position 2First inversion 2Second inversion 2
major
E♭ Major
E♭ · G · B♭
0suggested constellations
Chord tones are present, but no suggested three-string constellation contains all three chord tones.
major
E Major
E · G♯ · B
0suggested constellations
Chord tones are present, but the available shapes do not form a varied, octave-repeatable constellation family. Study the circles directly.
major
F Major
F · A · C
0suggested constellations
Chord tones are present, but no suggested three-string constellation contains all three chord tones.
major
F♯ Major
F♯ · A♯ · C♯
0suggested constellations
Chord tones are present, but no suggested three-string constellation contains all three chord tones.
major
G Major
G · B · D
6suggested constellations
Root position 2First inversion 2Second inversion 2
major
A♭ Major
A♭ · C · E♭
0suggested constellations
Chord tones are present, but no suggested three-string constellation contains all three chord tones.
major
A Major
A · C♯ · E
5suggested constellations
Root position 2First inversion 1Second inversion 2
major
B♭ Major
B♭ · D · F
0suggested constellations
Chord tones are present, but no suggested three-string constellation contains all three chord tones.
major
B Major
B · D♯ · F♯
0suggested constellations
Chord tones are present, but no suggested three-string constellation contains all three chord tones.