fretnot

C°R · ♭3 · ♭5

C diminished chord — dots are where your fingers go, × means skip that string.

DADGBE357♭5R♭3♭5
Root
dots
Chord
Scaleoptional
Shapex x 4 5 4 2 — frets · 4 fingers
In C natural minortap any · they fit together