Suspended 4th Chords
sus4 or sus
Suspended 4th chords (sus) are chords in which the 3rd is omitted. It is usually replaced with either a major 2nd (sus2), or a perfect fourth (sus4).
Both chords have interesting qualities, with the perfect fourth more commonly used (sus4). Dissonance is created due to the structure of the chord... omission of the 3rd and inclusion of a 2nd or 4th. This means the sound is generally unstable and needs resolution. This is usually done by going back to the major chord, for example D - Dsus4 - D, or D - Dsus2 - D ... try it.
In this session we will be charting suspended fourth chords.
The featured song for this session is 'Don't You Remember' by Adele... includes chords, lyrics, and instructions.
If you want to play a song which includes sus2 chords complete with chord charts, lyrics and instruction, try Everyone's Waiting by Missy Higgins.
- A Suspended 4th Chord (sus4 or sus) is a chord having a root, a perfect fourth (no third), and a perfect fifth.
- The chord formula for a sus chord is 1 - 4 - 5
- A Suspended 2nd Chord (sus2) is a chord having a root, a perfect second (no third), and a perfect fifth.
- The chord formula for a sus2 chord is 1 - 2 - 5
Example: Calculating a Bsus4 chord
- sus4 Chords consist of the 1st, 4th, and 5th notes of the Major Scale
- 'B' chords, are based on the scale of B major which consists of 5 sharps... F#, C#, G#, D# and A#.
- The scale reads as follows: B - C# - D# - E - F# - G# - A# - B
- Formula for sus4 chords: 1-4-5
- Substitute the notes of the scale into the formula
- Bsus4 = B - E - F#
- Same as above except the formula is 1-2-5 and after substituting the notes into the formula
- Bsus2 = B - C# - F#
Suspended 4th Chords Table (sus4 or sus)