B11 is a dominant 11th chord, and on the piano it is played from the notes B, D#, F#, A, C#, E. On piano it is played from the keys B, D#, F#, A, C#, E, root position first, then in inversions. This page is a complete reference for it: notes and intervals, fingerings, mistakes to avoid, the keys it belongs to and a short practice routine.
What notes are in the B11 chord?
The B11 chord is a dominant 11th chord, and its notes are fixed: B, D#, F#, A, C#, E. 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 B11 at a glance. On the piano, the root-position keys B, D#, F#, A, C#, E show B11 most clearly.
| Note | Interval |
|---|---|
| B | Root |
| D# | 3 |
| F# | 5 |
| A | b7 |
| C# | 9 |
| E | 11 |
The root is B, the note the chord is named after and the note your ear hears as home. Above it, the intervals in B11 are 3, 5, b7, 9, 11. That combination is what makes B11 sound the way it does: the intervals decide the colour, and the root decides the pitch. On the piano, the notes appear in the order the fingering dictates, but the set of notes never changes.
B11 sounds complex but smooth, a dominant chord with an extra note that softens its edge. That character comes straight from the intervals above, not from the instrument: the same notes on piano, guitar or ukulele carry the same colour, even though the voicing changes. On the piano, B11 is the keys B, D#, F#, A, C#, E, and the inversions above move the same notes around.
Comparing B11 with its closest relatives helps to fix it in your ear. In short, 11th against 9th: B11 adds the 11th E on top of the 9th C#. In practice the 3rd is often left out of the voicing, because the 11th clashes with it. Practise the two chords back to back and listen to the one note that changes — that single note is the difference between the two chords. On the piano, play the keys B, D#, F#, A, C#, E slowly and listen for each note of B11 in turn.
How to play B11 on piano
On the piano, B11 is played from the keys B, D#, F#, A, C#, E. In root position the lowest note is B, the root, with the other notes stacked above it in the order B, D#, F#, A, C#, E. Play it with the right hand first, then with the left hand an octave lower, so both hands know the shape of B11 before you try it in a progression.
First inversion of B11 puts D# in the bass, with the notes in the order D#, F#, A, C#, E, B. The chord is still B11 — the notes have not changed, only their order — but the bass note changes how it connects to the chord before and after it. Use this inversion when the bass line wants to step to D# rather than jump to B, and practise moving from root position to this inversion without lifting your hand off the keys more than you must.
Second inversion of B11 puts F# in the bass, with the notes in the order F#, A, C#, E, B, D#. The chord is still B11 — the notes have not changed, only their order — but the bass note changes how it connects to the chord before and after it. Use this inversion when the bass line wants to step to F# rather than jump to B, and practise moving from root position to this inversion without lifting your hand off the keys more than you must.
Third inversion of B11 puts A in the bass, with the notes in the order A, C#, E, B, D#, F#. The chord is still B11 — the notes have not changed, only their order — but the bass note changes how it connects to the chord before and after it. Use this inversion when the bass line wants to step to A rather than jump to B, and practise moving from root position to this inversion without lifting your hand off the keys more than you must.
Because B11 has 6 notes, it has further inversions beyond the third, each one putting a different chord tone in the bass. The principle stays the same: the notes are always B, D#, F#, A, C#, E, and the inversion you choose is the one whose bass note makes the smoothest line through the progression. Try the Chord Inverter to see every inversion of B11 on the keyboard.
For fingering, a good starting point for B11 in root position in the right hand is thumb on B, then one finger per note in order, with the little finger on the top note E. For the left hand, mirror it: little finger on the low B and thumb on the top note. When a note is a black key — D#, F#, C# — let your longer fingers take it, since they reach the black keys more easily. Practise B11 in root position and first inversion, hands separately, then together, at a slow tempo, and use the Piano Chord Finder to check the voicing on the keyboard.
Common mistakes
These are the mistakes that most often make B11 sound wrong on the piano, and each one has a concrete fix. Work through them one at a time rather than trying to fix everything at once.
Playing every inversion with the same hand shape. Each inversion of B11 needs its own hand shape, because the notes sit under different fingers. If you force the root-position fingering onto an inversion, the hand cramps and notes get missed. Learn the fingering for each inversion of B11 separately, hands apart, before you join them. On the piano, play the keys B, D#, F#, A, C#, E slowly and listen for each note of B11 in turn.
Playing the 3rd and 11th together. D# and E clash badly in the same octave. In an 11th chord the 3rd is usually omitted or placed far from the 11th. On the piano, play the keys B, D#, F#, A, C#, E slowly and listen for each note of B11 in turn.
Crowding six notes. Six notes are too many for most voicings. Drop the 5th and often the 3rd too, keeping root, 7th, 9th and 11th. On the piano, B11 is the keys B, D#, F#, A, C#, E, and the inversions above move the same notes around.
Playing the 11th too low. E low down sounds muddy against the root. Keep it high in the voicing. On the piano, play the keys B, D#, F#, A, C#, E slowly and listen for each note of B11 in turn.
Where B11 is used
B11 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 colour dominant for slow jazz and fusion, where its width has room to show. 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 B11 does its work: not as a home chord, but as a chord that creates movement and then resolves. On the piano, B11 is the keys B, D#, F#, A, C#, E, and the inversions above move the same notes around.
Because B11 is an extended or altered chord, it appears in progressions as a colour or a dominant rather than as a diatonic staple. Try it in place of the plain B triad in a progression you already know, and listen to how the extra notes change the feel — that substitution is the usual way extended chords enter real music. The Chord Progression Builder lets you try B11 in a progression in any key and hear how it connects to the chords around it. On the piano, play the keys B, D#, F#, A, C#, E slowly and listen for each note of B11 in turn.
The same chord on other instruments is covered in B11 on guitar, B11 on ukulele, B11 on bass, and the scales that fit over it are the B major scale and the B minor pentatonic scale. Learning B11 on the piano and then checking it on another instrument is one of the best ways to fix the notes — B, D#, F#, A, C#, E — in your memory, because the notes stay the same while everything else changes.
Practising B11
A short worked example makes B11 concrete. Play the four-chord progression E – B – C#m – A in E major, the key B11 most often resolves toward: E – B – C#m – A. Play each chord for one bar at a slow tempo, and listen to how B11 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 B11 itself, and notice how its character changes when it opens the progression instead of sitting inside it. On the piano, the root-position keys B, D#, F#, A, C#, E show B11 most clearly.
For a second exercise, play B11 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 B11 is built for when it acts as a dominant. Finish by playing B11 on its own, slowly, and naming each note out loud as you play it: B, D#, F#, A, C#, E. 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 piano, play the keys B, D#, F#, A, C#, E slowly and listen for each note of B11 in turn.
Frequently asked questions
What notes are in B11?
B11 contains B, D#, F#, A, C#, E: root, major 3rd, perfect 5th, flattened 7th, 9th and 11th. In practice the 3rd is often omitted from the voicing, because it clashes with the 11th. On the piano, check the root-position keys above for that note.
Why is the 3rd often left out of B11?
The 11th E is a semitone above the major 3rd D#, so the two notes clash in the same octave. Leaving the 3rd out keeps the chord open and lets the 11th colour it. On the piano, check the root-position keys above for that note.
Where is B11 used?
B11 is a dominant colour in jazz and fusion, used as a V11 that resolves to the tonic. It suits slow tempos and open voicings where its width can be heard. On the piano, check the root-position keys above for that note.
How do you play B11 on the piano?
In root position, play the keys B, D#, F#, A, C#, E, with B as the lowest note. That is the basic shape of B11 on the piano. The inversions above put a different note in the bass, and the Chord Inverter shows every inversion of B11 on the keyboard.
What is the first inversion of B11?
The first inversion of B11 puts D# in the bass, with the notes in the order D#, F#, A, C#, E, B. The chord is still B11 — only the bass note has changed — and it is the inversion to use when the bass line steps to D#.