← Chord Library

Fdim7/D – 9th Position

Diminished 7th slash chord

Level 4: Slash chords

Notes: F, A♭, C♭, D · Bass note: D · 9th Position

Also known as: Fdim7/D, Fdim7 over D, F diminished 7th over D, Fdim7 slash D

9fr2131DC♭FA♭1234T
9fr2131DC♭FA♭1234T

Fretting hand for left-handed players (your right hand), Fdim7/D. The numbers on the fingertips match the numbers on the chart.Fretting hand for right-handed players (your left hand), Fdim7/D. The numbers on the fingertips match the numbers on the chart.

  • 1Index
  • 2Middle
  • 3Ring
  • 4Pinky
  • TThumb, behind the neck

How to play Fdim7/D

  1. Lay your first finger flat across every string from the D string to the B string at the ninth fret.
  2. Place your second finger on the tenth fret of the low E string.
  3. Place your third finger on the tenth fret of the G string.
  4. Strum from the low E string. Do not play the A and high E strings.

Tips for new players

  • Keep your thumb behind the neck and let your fingers arch.
  • Press just behind the fret, not on top of it, so every string rings clearly.
  • Play the plain chord first, then this slash chord, and listen to how the new bass note changes the sound.

Chord video

Watch Fdim7/D, step by step

A short animation that builds the Fdim7/D chart and explains every symbol on it.

  • X marks a string that is muted or not played.
  • Open circle marks a string you play without fretting.
  • Numbered dot marks a fretted string. The number is the finger to use.

Learn and practice Fdim7/D

Practice progression

Fdim7, Fdim7/D

Switch between Fdim7 and Fdim7/D until the changes feel smooth.