Finger Positions

Root Note F

Name F diminished seventh over C

Intervals 1P-3m-5d-7d

Relative Minor Dm

Notes C, F, Ab, B, D

Aliases Fdim7, F°7, Fo7

How to play the Fdim7/C Chord

The Fdim7/C is a fundamental dominant chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the F diminished seventh over C is built using the 1P, 3m, 5d, 7d intervals. In the key of F Major, this chord functions as the I chord.

Common Progressions

In music composition, the Fdim7/C chord is often used to create tension or resolution.

I-V-vi-IV

F → C → Dm → Bb

vi-IV-I-V

Dm → Bb → F → C

The Diatonic Family

Understanding the "family" of chords that belong to F helps with transposition and ear training.

Triads

F Gm Am Bb C Dm Edim

7ths

Fmaj7 Gm7 Am7 Bbmaj7 C7 Dm7 Em7b5

Scale Compatibility

View All Scales

Diminished Ultralocrian Locrian 6 Dorian #4 Lydian Diminished Hungarian Major Lydian #9 Half-Whole Diminished Composite Blues Messiaen's Mode #7 Chromatic

* 11 scales found containing the notes C, F, Ab, B, D.

Acoustic & Digital Analysis

Digital footprint of the Fdim7/C chord for MIDI programming and synthesizer sound design.

MIDI Numbers 60, 65, 68, 71, 62

Frequencies (Hz)

261.6255653005986, 349.2282314330039, 415.3046975799451, 493.8833012561241, 293.6647679174076