F 7b9 Chord on 4-String Bass
Play F 7b9 on 4-String Bass: diagrams, finger positions, intervals, and every voicing up and down the neck for this instrument.
The F 7b9 chord is an extended or altered dominant that stacks ninths, elevenths, thirteenths, or chromatic tensions over a dominant-seventh core. It is built from the notes F, F#, A, C, D#. This page shows how to play F 7b9 on 4-String Bass with clear fretboard diagrams and suggested finger positions.
The A string ring open in the lowest shape, with the remaining notes fretted at fret 11 over a 3-fret stretch. F falls on the E string. It sounds from A1 up to F#3.
4-String Bass is tuned E–A–D–G, with 15 frets to work with.
Browse alternate voicings to find the one that sits best under your fingers, then compare it with the other chord types built on F 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.