Cdim7 chord
C diminished seventh
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Play Cdim7 on ukulele at frets 5-3-2-0 in gCEA tuning.
The Cdim7 chord has the formula 1, b3, b5, bb7 with notes C, D#, F#, A
The diminished seventh chord is used in classical and jazz music. It is often formed on the seventh degree and used as a leading-tone chord toward the tonic.