Chords
Gb Suspended fourth seventh
Gb · Cb · Db · Fb
A dominant seventh with the third replaced by a fourth — tension without commitment.
Also written Gb7sus
Gb Suspended fourth seventh
Gb · Cb · Db · Fb
Voicings on the piano
| Voicing | Notes | Play it on your instrument |
|---|---|---|
| Closed, root position | Gb3 · Cb3 · Db4 · Fb4 | |
| Open (drop 2) | Cb3 · Db3 · Gb3 · Fb4 | |
| Shell | Gb3 · Cb3 · Fb4 | |
| Rootless | Cb3 · Db4 · Fb4 |
Tap a key or a fret to hear it.
Anatomy
Gb Suspended fourth seventh (Gb7sus4) contains the notes Gb · Cb · Db · Fb, each with a role measured as an interval from the root.
Read on: how triads are built · seventh chords
Inversions
An inversion of Gb Suspended fourth seventh puts a chord tone other than Gb in the bass; the name after the slash is that bass note.
Where it lives
The keys and the scales Gb Suspended fourth seventh belongs to.
In which keys
Gb Suspended fourth seventh is diatonic to 8 keys; the numeral is its degree and the label its harmonic function.
Scales that contain it
Gb Suspended fourth seventh fits inside these scales, each built on Gb.
- Gb MixolydianGb · Ab · Bb · Cb · Db · Eb · Fb
- Gb Mixolydian PentatonicGb · Bb · Cb · Db · Fb
- Gb EgyptianGb · Ab · Cb · Db · Fb
- Gb PiongioGb · Ab · Cb · Db · Eb · Fb
- Gb BebopGb · Ab · Bb · Cb · Db · Eb · Fb · F
Understanding the Gb Suspended fourth seventh chord
Names and symbols
Gb7sus4 is the chord symbol for Gb Suspended fourth seventh; it is also written Gb7sus.
sus on its own means sus4, and 7sus means 7sus4. sus2 is sometimes written add9(no3), which names the same notes from another angle.
Gb Suspended fourth seventh and F# Suspended fourth seventh are the same sound spelled two ways; both have a page here, and each links to the other. F# Suspended fourth seventh
How it is built
On Gb it is Gb · Cb · Db · Fb, stacking 1P · 4P · 5P · 7m. The seventh keeps the dominant character; removing the third removes the tritone, and with it most of the urgency.
How it is used
It is the sound of a dominant that has been asked to wait. Modal jazz uses it as a standing harmony — "So What" and a great deal of what followed sit on sus chords for bars at a time. In pop it is the chord before the chorus arrives.
Learn this properly
Chapter 10: Chords: Triads and SeventhsCommon questions
- What notes are in Gb7sus4?
- Gb7sus4 contains Gb · Cb · Db · Fb. Name any set of notes with the chord identifier.
- How is 7sus4 different from a dominant seventh?
- The third is replaced by the fourth, which removes the tritone. The chord still sounds dominant but no longer insists on resolving.
- Where is 7sus4 used?
- As a delayed dominant before a cadence, and as a standing modal harmony in jazz and in gospel.
- What notes are in the Gb Suspended fourth seventh chord?
- The Gb Suspended fourth seventh chord contains the notes Gb · Cb · Db · Fb: the root Gb with the intervals 1P, 4P, 5P, 7m stacked above it. Play them together for the chord or one after another for an arpeggio. The lowest note is normally Gb, but any chord tone can take the bass in an inversion.
- What intervals make up the Gb Suspended fourth seventh chord?
- Measured from Gb, the Gb Suspended fourth seventh chord stacks the intervals 1P, 4P, 5P, 7m. The quality of the third and of the seventh, if there is one, is what gives the chord its character; the rest of the notes colour it. Every interval in the formula links to its own page, with its sound.