B m7b5 Chord on 4-String Bass

Play B m7b5 on 4-String Bass: diagrams, finger positions, intervals, and every voicing up and down the neck for this instrument.

B m7b5 chord diagram, starting at fret 1. Strings low to high: E 7th fret, A open, D open, G 10th fret.

The B m7b5 chord is a half-diminished (m7b5) chord, central to the minor ii–V–i. It is built from the notes B, D, F, A. This page shows how to play B m7b5 on 4-String Bass with clear fretboard diagrams and suggested finger positions.

The shape nearest the nut leaves the A and D strings open and takes the rest at fret 7, reaching across 4 frets. B falls on the E string. It sounds from A1 up to F3.

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 B 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.