Diminished 7th slash chord
Level 4: Slash chords
Notes: F, A♭, C♭, D · Bass note: B · 6th Position
Also known as: Fdim7/B, Fdim7 over B, F diminished 7th over B, Fdim7 slash B
Fretting hand for left-handed players (your right hand), Fdim7/B. The numbers on the fingertips match the numbers on the chart.Fretting hand for right-handed players (your left hand), Fdim7/B. The numbers on the fingertips match the numbers on the chart.
- 1Index
- 2Middle
- 3Ring
- 4Pinky
- TThumb, behind the neck
How to play Fdim7/B
- Lay your first finger flat across every string from the D string to the B string at the sixth fret.
- Place your second finger on the seventh fret of the low E string.
- Place your third finger on the seventh fret of the G string.
- 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/B, step by step
A short animation that builds the Fdim7/B 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/B
Practice progression
Fdim7, Fdim7/B
Switch between Fdim7 and Fdim7/B until the changes feel smooth.