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Tomus

Chord reference

Suspended fourth

1 – 4 – 5 · example: Csus4 = C – F – G

The third replaced by the fourth. Traditionally it resolves down to the third.

Written as a formula it is 1 – 4 – 5: the degrees of the major scale it keeps, with any that are altered marked. On C that gives Csus4 = C, F, G.

How it is built

  1. G
    fourth
  2. F
    perfect
  3. Croot
Csus4 stacked from the root upwards, with the interval between each pair of notes.
𝄞CFG
Csus4 written out as an arpeggio, lowest note first.
CCDEFFGGABCDE
Csus4 on the keyboard, root highlighted.

The intervals above the root

Chord toneInterval above the rootSemitonesNote in Csus4
1Perfect unison0C
4Perfect fourth5F
5Perfect fifth7G

Inversions

The same notes can be stacked in any vertical order. The chord keeps its name; what changes is which note is in the bass. See chord inversions for why that matters.

PositionNotesWritten as
Root positionC – F – GCsus4
First inversionF – G – CCsus4/F
Second inversionG – C – FCsus4/G

This chord on every root

RootSymbolNotes
CCsus4C – F – G
D♭D♭sus4D♭ – G♭ – A♭
DDsus4D – G – A
E♭E♭sus4E♭ – A♭ – B♭
EEsus4E – A – B
FFsus4F – B♭ – C
F♯F♯sus4F♯ – B – C♯
GGsus4G – C – D
A♭A♭sus4A♭ – D♭ – E♭
AAsus4A – D – E
B♭B♭sus4B♭ – E♭ – F
BBsus4B – E – F♯
Twelve roots, one shape. The interval pattern above the root never changes.

Nearby chords

All chord types