Fig. 1 · Fdim on the keyboard

piano chord

Fdim

F1A♭♭3C♭♭5

Two minor thirds stacked. The fifth is diminished, so it cannot be dropped without losing the chord.

on guitar on ukulele the scale

What is true of it

Fdim is F, A♭ and C♭ — 1, b3 and b5 counted from F.

F in other shapes

Fmajor Fmminor Faugaugmented F5power chord Fsus2suspended second Fsus4suspended fourth

Cdim C♯dim D♭dim Ddim D♯dim E♭dim Edim F♯dim all 374