A diminished chord for guitar (Adim)
Diagram, fingering, and theory for the A diminished chord (Adim) on guitar: A · C · D#.
Root
Chord
DiagramAdim
Stacked thirds
1
3m
♭5
Theory
Formula1-♭3-♭5
DifferenceBoth 3rd and 5th lowered (♭3, ♭5).
SoundTense, unstable, wants to resolve.
Functionvii°, a passing chord.
UseBrief tension before a resolution.
Next steps
△TriadsSee the triads and inversions on the fretboard∷ArpeggiosPlay the chord note by note⚿ProgressionsUse it in a chord progression
Diagram for guitar in standard tuning.
A diminished
The A diminished chord (Adim) is made up of: A · C · D#.
Brief tension before a resolution.