The B7 ukulele chord is built from the notes B, D#, F#, A. Its first ukulele voicing is the movable voicing: G string at fret 4 (ring finger); C string at fret 3 (middle finger); E string at fret 2 (index finger); A string open. It is a dominant 7th chord, and this page gives you its exact notes, the fingerings that work on the ukulele, the mistakes to avoid and the progressions it appears in.
What notes are in the B7 chord?
The B7 chord is a dominant 7th chord, and its notes are fixed: B, D#, F#, A. Every voicing on every instrument uses these same notes, in some order and in some octave — change one of them and you are playing a different chord. The table below lists each note with its interval from the root B, so you can see the structure of B7 at a glance. On the ukulele, the movable voicing voicing is the place to hear it in B7.
| Note | Interval |
|---|---|
| B | Root |
| D# | 3 |
| F# | 5 |
| A | b7 |
The root is B, the note the chord is named after and the note your ear hears as home. Above it, the intervals in B7 are 3, 5, b7. Those intervals are the fingerprint of the dominant 7th quality — any chord with the same interval pattern, on any root, is the same kind of chord. On the ukulele, the notes appear in the order the fingering dictates, but the set of notes never changes.
B7 sounds bluesy and restless — the flattened 7th ({flat7}) pulls the chord forward and makes it want to resolve. The colour is strongest when all the notes ring clearly. A muted chord tone, especially the 3rd or the 7th where the chord has one, flattens the character of B7 noticeably. On the ukulele, the movable voicing voicing is the place to hear it in B7.
Comparing B7 with its closest relatives helps to fix it in your ear. In short, dominant 7th against major 7th: B7 uses the flattened 7th A, while the major 7th version uses A#. One semitone separates a bluesy pull from a dreamy shimmer. Hearing the comparison matters more than reading it: play B7, then play the chord it is compared with above, and let your ear find the note that changed. On the ukulele, the movable voicing of B7 puts those notes under your fingers in the order the fingering lists them.
How to play B7 on ukulele
On the ukulele, B7 has 3 voicings in the data below, and each one uses the same notes — B, D#, F#, A — in a different place on the neck. Start with the first voicing and get it clean before you try the movable shapes further up the neck. Finger numbers below use 1 for the index finger, 2 for the middle finger, 3 for the ring finger and 4 for the little finger, and x means the string is not played.
The movable voicing puts B7 in around fret 2: G string at fret 4 (ring finger); C string at fret 3 (middle finger); E string at fret 2 (index finger); A string open. This voicing is comfortable because the fretted notes sit close together, from fret 2 to fret 4, so your hand stays relaxed and every note can ring. Strum or pluck it slowly first and check that every note in B7 — B, D#, F#, A — sounds, with no buzz and no accidental open string.
The barre chord puts B7 in around fret 1: G string at fret 2 (index finger); C string at fret 3 (middle finger); E string at fret 2 (index finger); A string at fret 2 (index finger). It barres across strings 1 to 4 at fret 2 with the index finger. The barre is the hard part: the index finger must press every string from 1 to 4 evenly at fret 2, so roll it slightly onto its bony side and keep it close to the fret wire. If the barre buzzes, move it a fraction closer to the fret and press from the arm, not the thumb alone. Strum or pluck it slowly first and check that every note in B7 — B, D#, F#, A — sounds, with no buzz and no accidental open string.
The movable voicing puts B7 in around fret 3: G string at fret 4 (middle finger); C string at fret 3 (index finger); E string at fret 5 (ring finger); A string open. This voicing is comfortable because the fretted notes sit close together, from fret 3 to fret 5, so your hand stays relaxed and every note can ring. Strum or pluck it slowly first and check that every note in B7 — B, D#, F#, A — sounds, with no buzz and no accidental open string.
Choosing between the voicings of B7 is a musical decision, not a right-or-wrong one. The open or low-position voicing rings the most and suits strumming, while a barre or movable voicing lets you slide B7 up the neck to any key without changing the shape. When you change chords, pick the voicing of B7 that sits closest to the chord before it — shorter moves between shapes mean faster, cleaner changes. Practise the change into B7 from the chord that comes before it in your song, not the chord on its own, because the move is the skill. On the ukulele, start with the first voicing above and listen for the notes B, D#, F#, A in B7.
A short practice routine for B7 on the ukulele: play the first voicing four times slowly, checking each note, then change to it from the chord a fourth above B and back, four times, at a slow tempo. Then play the second voicing the same way. If a note buzzes, stop and fix the finger placement rather than playing through the buzz — clean notes at a slow tempo become clean notes at full tempo, while buzzes practised fast become habits. Use the Ukulele Chord Finder to see the diagram for B7 while you practise, and the Chord Finder to compare it with the same chord on other instruments.
Common mistakes
These are the mistakes that most often make B7 sound wrong on the ukulele, and each one has a concrete fix. Work through them one at a time rather than trying to fix everything at once.
Playing a major 7th instead. If the 7th comes out as A# rather than A, you have the major 7th chord. Lower that note by one semitone — one fret, or one key down. On the ukulele, the movable voicing of B7 puts those notes under your fingers in the order the fingering lists them.
Forgetting the 7th altogether. Without A this is just a major triad, and the dominant pull disappears. Make sure the note carrying the 7th actually sounds. On the ukulele, the movable voicing of B7 puts those notes under your fingers in the order the fingering lists them.
Resolving it nowhere. B7 wants to move, usually to the tonic a fourth above its root. Practise the V7–I move so the resolution lands cleanly. On the ukulele, start with the first voicing above and listen for the notes B, D#, F#, A in B7.
Muddy low voicings. The flattened 7th low down can sound muddy. Try a higher voicing or drop the 5th, which is the least important note in a dominant 7th chord. On the ukulele, the movable voicing voicing is the place to hear it in B7.
Where B7 is used
B7 is not a diatonic triad in any major or minor key, because it is an extended or altered chord, but its base triad belongs to the key of E major, the key of F# major, the key of B major. a secondary dominant that can tonicise another chord — V7 of almost anything. As a dominant-type chord it also points toward E major, the key a perfect fourth above B, which is the tonic it most often resolves to. That is where B7 does its work: not as a home chord, but as a chord that creates movement and then resolves. On the ukulele, the movable voicing of B7 puts those notes under your fingers in the order the fingering lists them.
You will meet B7 in progressions such as 12 bar blues progression in E major, 12 bar blues progression in F# major, 12 bar blues progression in B major. Try playing one of those progressions slowly and listening to how B7 behaves in context — whether it sounds like home, like a lift, or like a chord pulling toward the next one. That context is the fastest way to learn what B7 is for, because a chord on its own tells you its notes, but a chord in a progression tells you its job. On the ukulele, start with the first voicing above and listen for the notes B, D#, F#, A in B7.
The same chord on other instruments is covered in B7 on guitar, B7 on piano, B7 on bass, and the scales that fit over it are the B major scale and the B minor pentatonic scale. Learning B7 on the ukulele and then checking it on another instrument is one of the best ways to fix the notes — B, D#, F#, A — in your memory, because the notes stay the same while everything else changes.
Practising B7
A short worked example makes B7 concrete. Play the four-chord progression E – B – C#m – A in E major, the key B7 most often resolves toward: E – B – C#m – A. Play each chord for one bar at a slow tempo, and listen to how B7 sounds in that sequence — whether it feels like home, like a lift, or like a chord on its way somewhere else. Then play the same four chords in a different order, starting on B7 itself, and notice how its character changes when it opens the progression instead of sitting inside it. On the ukulele, the movable voicing of B7 puts those notes under your fingers in the order the fingering lists them.
For a second exercise, play B7 and then the chord a fourth above B, back and forth, four times each. That move — a chord and the chord a fourth above it — is the most common resolution in Western music, and it is the move B7 is built for when it acts as a dominant. Finish by playing B7 on its own, slowly, and naming each note out loud as you play it: B, D#, F#, A. Naming the notes while you play them is what turns a shape into knowledge you can use in any key. Test yourself with the Practice Chord Quiz and keep time with the Metronome as the tempo rises. On the ukulele, start with the first voicing above and listen for the notes B, D#, F#, A in B7.
Frequently asked questions
Why does B7 sound bluesy?
The flattened 7th A sits a whole step below the root, and its clash with the major 3rd D# creates the tension the blues is built on. That tritone-like pull is the sound of the dominant 7th. On the ukulele, the voicings above put that note under your fingers.
Which chord does B7 resolve to?
Most often it resolves to the tonic a perfect fourth above B — the I chord of the key where B7 is the V7. In the blues it can also stay put for a whole bar, which is part of the style. On the ukulele, the voicings above put that note under your fingers.
How do you play B7 on the ukulele?
The first voicing is the movable voicing: frets 4–3–2–0, fingers 3–2–1–0, on the ukulele. That voicing uses the notes B, D#, F#, A, and it is the one to learn first. The page above lists more voicings for B7, so you can choose the shape nearest the chords around it.
Is B7 hard to play on the ukulele?
It depends on the voicing. The first voicing of B7 on the ukulele is the easiest starting point, and the movable voicings further up the neck are harder because they need a barre or a wider stretch. Practise the first voicing cleanly at a slow tempo before you try the others, and the harder shapes will come more easily.
What is the easiest voicing of B7 on the ukulele?
The movable voicing is the easiest voicing listed for B7 on the ukulele: frets 4–3–2–0, fingers 3–2–1–0. Learn that shape first, get every note ringing cleanly, and only then move on to the alternative voicings further up the neck.