C# 9sus4 Chord on 4-String Bass
Play C# 9sus4 on 4-String Bass: diagrams, finger positions, intervals, and every voicing up and down the neck for this instrument.
The C# 9sus4 chord is a suspended dominant that replaces the third with a fourth or second over a seventh. It is built from the notes C#, D#, F#, G#, B. This page shows how to play C# 9sus4 on 4-String Bass with clear fretboard diagrams and suggested finger positions.
4-String Bass is tuned E–A–D–G, with 15 frets to work with.
On 4-String Bass it is most often played as a movable shape you can slide along the fretboard to reach the right register, with the lowest comfortable position depending on your tuning and reach.
Browse alternate voicings to find the one that sits best under your fingers, then compare it with the other chord types built on C# or explore the same shape in nearby keys. The diagrams list the notes in each voicing so you can connect the shape to the theory behind it.