Chords » D# 7th Suspended Fourth

Symbols:D#7sus, D#7sus4, D#9sus4, D#9sus
Scale Degree Formula:1-4-5-♭7
Interval Stack:P4 + M2 + m3
Notes:D#, G#, Bb, C#
Hear this chord:▸ Guitar

Construction

Using the scale degree formula, we first start with the D# major scale, and number each note in the scale starting from 1 - these are the scale degrees. Next, we use the scale degree formula, in this case 1-4-5-♭7, to select notes from our enumerated scale. When a chord requires notes that are not in the scale, this is indicated with a flat (♭) or a sharp (#) along with the scale degree; a ♭3, for instance, would be one half-step down from the 3rd scale degree.
Alternatively, we can use the interval stack to construct our chord. With this approach, we first start with the lowest note of the chord (D#), then move our first interval (P4), which brings us to our second note in the chord (G#). We repeatedly apply each of the remaining intervals in the stack to get the full list of notes for our chord.
The diagram below shows how both the scale degree formula and interval stack methods result in the same selection of notes:
D#1E♭2F2F#♭3G3G#4A♭5Bb5B#5C6C#♭7P4M2m3

Similar Chords

The following chords are similar to this chord and may be a suitable replacement in certain scenarios.

Chord TypeChords
7th Suspended Four Flat 9thD#7sus4b9
7th Suspended SecondG#7sus2, D#7sus2, C#7sus2
Added 9thG#add9, F#add9, C#add9
Dominant 7thD#7
Half-Diminished 7thBbm7(b5)
Major 2ndG#2, F#2, C#2
Major 6thF#M6, C#M6
Major 7th Flat FifthEMaj7b5, AMaj7b5
Major Added 11thG#add11, D#add11
Minor 2ndG#m2, C#m2
Minor 6thC#m6
Minor 7thD#m7, Bbm7
Minor Added 11thG#madd11, D#madd11, Bbmadd11
Minor Added 9thG#madd9, C#madd9
Minor Six-NineC#m6/9
Six-NineF#6/9, C#6/9
Suspended FourthG#sus, D#sus
Suspended SecondG#sus2, C#sus2

Associated Scales

This chord can be found in the following scales.

ScaleRoots
BluesBb, D#
Blues MajorC#, G#
Blues MinorBb, F
DorianC#, Bb, G#, D#
Dorian b5Bb
Harmonic MajorG#
Harmonic MinorG#
Ionian #5B
LocrianC, Bb, G, F
Locrian bb7G
Locrian ♮6Bb
LydianC#, B, F#, E
Lydian #9E
Lydian Augmented #2E
Lydian b3C#
MajorC#, B, G#, F#
Major PentatonicC#, F#
MinorBb, G#, F, D#
Minor PentatonicBb, D#
MixolydianC#, G#, F#, D#
Mixolydian b2D#
PhrygianC, Bb, F, D#
Phrygian DominantD#
Phrygian b4C
Super-Locrian bb7G
SuspendedG#, D#
Ukrainian DorianC#

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