The Cdim7 chord
The Cdim7 chord is built from C, Eb, Gb, Bbb. With notation, piano keyboard, guitar and ukulele shapes.
In notation
Three minor thirds stacked. It divides the octave into four equal parts and can therefore resolve in four directions.
Intervals from the root
Piano
Guitar
Ukulele
Related pages
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See AnotonaEvery note on this page is computed, not typed in — following the rule that also makes F# major spell its seventh degree E#, not F.