B dim7 Chord on 8-String Guitar

Play B dim7 on 8-String Guitar: diagrams, finger positions, intervals, and every voicing up and down the neck for this instrument.

The B dim7 chord is a diminished chord built from stacked minor thirds, often used as a passing or leading chord. It is built from the notes B, D, F, G#. This page shows how to play B dim7 on 8-String Guitar with clear fretboard diagrams and suggested finger positions.

The lowest shape sits at fret 2 and spans 3 frets, with no open strings in it. The F#, B and E strings stay silent, so 5 of 8 sound. B falls on the A string. It sounds from B2 up to G#4.

8-String Guitar is tuned F#–B–E–A–D–G–B–E, 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.