B5 Chord on Guitar
B5 = B – F# (Root, Perfect 5th)
B5 lives two frets above A5 at the seventh fret, right where most guitars mark a single dot on the fretboard, giving it another easy-to-spot home base. The fingering itself doesn't change from anywhere else in this family: index finger on the root, ring finger or a compact partial barre reaching two frets higher for the fifth and its octave.
Committing to neither major nor minor, this shape works equally under a B-major or B-minor context and stays punchy under distortion in a way a full triad never could. Because plain B major has no open-string form at all and demands a genuine barre in every voicing, this power-chord version is often the far more practical way rock and punk rhythm guitarists actually approach a B-rooted chord — no barre required at all, just two fingers. It's a common passing or connecting chord in riffs built around the neighboring, guitar-friendlier keys of E and A, adding a brief moment of harmonic motion without forcing a full chord change. Sitting right at the seventh-fret dot also makes it a convenient reference point for players who navigate the neck primarily by inlay markers rather than counting up from the nut.
Fingerings
Barre (7th fret)
How to Practice It
Use that seventh-fret dot as a quick visual anchor rather than counting frets from scratch each time — a habit worth building generally for finding power chords fast during a song. Deaden the unused strings as always, either with the picking-hand palm or the fretting hand's natural curl, since a stray ring stands out more this far from the neck's more forgiving lower positions. Set this shape directly against a full B-major barre chord to feel the difference — two fingers and three strings here, versus a genuine barre either way for the full triad — which makes the power-chord version the clearly faster choice for quick rock or punk rhythm parts. Once comfortable, slide down through A5 and further to G5, tracing a descending run that's a common shape in rock riffs moving through the neck's middle register. Because B naturally functions as a connector between the guitar-friendly keys of E and A, spend time drilling quick transitions into and out of this chord from both directions, since that's the context you'll most often meet it in during real songs. Try holding this shape for a full measure while gradually increasing distortion or gain, listening for the point where the fifth starts to lose definition — useful practical information about your own rig's limits.
Common Progressions
- B5 – E5 – F#5 (I – IV – V power-chord progression)
- B5 – A5 – E5 (a common descending rock riff)
- B5 – D5 – A5 (a minor-key-flavored power-chord vamp)
FAQ
- Why is B5 more practical than full B major for rock guitar?
- Plain B major has no open-string version and requires a genuine barre chord (either a full six-string E-shape barre or a partial A-shape barre), while B5 needs only two fingers on three adjacent strings and no barre at all, making it dramatically easier to grab quickly in a fast rock or punk rhythm part.
- How do I quickly find the seventh fret for B5?
- Most guitars have a single dot inlay marking the seventh fret on the fretboard, making it one of the easiest positions to locate visually without counting up from the nut each time.
- Does B5 work in both B major and B minor contexts?
- Yes — like every power chord, B5 omits the third and carries no inherent major or minor quality, so it functions correctly whether the surrounding harmony implies B major or B minor.
- Is B5 used often in songs centered on E or A major?
- Yes — since B is the dominant of E and the second-degree root relative to A, B5 shows up frequently as a passing or connecting power chord in guitar-friendly rock riffs built around those two neighboring keys.
- Is there a lower-position way to play the same pitch as B5?
- Not on the low E string, since B doesn't fall on any open string there, but a related B5 voicing rooted on the open A string, fretted at the second fret with the fifth two frets higher on the D string, offers an alternative closer to open position for some arrangements.
- Does B5 come up often in songs that also use open A and E chords?
- Yes — precisely because B functions as the dominant of E and sits a whole step above A, it's a natural chord for songwriters working in either key to reach for as a connecting or contrasting color, even in otherwise fairly guitar-friendly, open-chord-heavy material.
- Is B5 comfortable to hold for an extended vamp?
- Yes — the seventh fret sits in a relaxed part of the neck for most hand sizes, and because only two fingers are doing any work, sustaining this shape through a long groove is considerably less fatiguing than holding a full barre chord for the same length of time.
Related: how chords are built, chord finder.