Finger Positions

Root Note Bb

Name Bb suspended fourth

Intervals 1P-4P-5P

Relative Minor Gm

Notes Bb, Eb, F

Aliases Bbsus4, Bbsus

How to play the Bbsus4 Chord

The Bbsus4 is a fundamental suspended chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the Bb suspended fourth is built using the 1P, 4P, 5P intervals. In the key of Bb Major, this chord functions as the I chord.

Common Progressions

In music composition, the Bbsus4 chord is often used to create tension or resolution.

I-V-vi-IV

Bb → F → Gm → Eb

vi-IV-I-V

Gm → Eb → Bb → F

The Diatonic Family

Understanding the "family" of chords that belong to Bb helps with transposition and ear training.

Triads

Bb Cm Dm Eb F Gm Adim

7ths

Bbmaj7 Cm7 Dm7 Ebmaj7 F7 Gm7 Am7b5

Scale Compatibility

View All Scales

Major Minor Minor Blues Melodic Minor Harmonic Minor Bebop Dorian Mixolydian Phrygian Ionian Pentatonic Mixolydian Pentatonic Ritusen Egyptian Vietnamese 1 Kumoijoshi

* 15 scales found containing the notes Bb, Eb, F.

Acoustic & Digital Analysis

Digital footprint of the Bbsus4 chord for MIDI programming and synthesizer sound design.

MIDI Numbers 70, 63, 65

Frequencies (Hz)

466.1637615180899, 311.1269837220809, 349.2282314330039