Cm11 is a minor 11th chord, and on the guitar it is played from the notes C, D#, G, A#, D, F. Its first guitar voicing is the open position: low E string muted; A string at fret 3 (middle finger); D string open; G string at fret 3 (ring finger); B string at fret 4 (little finger); high e string at fret 1 (index finger). 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 Cm11 chord?
The Cm11 chord is a minor 11th chord, and its notes are fixed: C, D#, G, A#, D, F. 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 C, so you can see the structure of Cm11 at a glance. On the guitar, the open position voicing is the place to hear it in Cm11.
| Note | Interval |
|---|---|
| C | Root |
| D# | b3 |
| G | 5 |
| A# | b7 |
| D | 9 |
| F | 11 |
The root is C, the note the chord is named after and the note your ear hears as home. Above it, the intervals in Cm11 are b3, 5, b7, 9, 11. Learn those intervals rather than memorising the shape alone, because the same interval pattern transposed to another root gives you the same quality of chord anywhere. On the guitar, the notes appear in the order the fingering dictates, but the set of notes never changes.
Cm11 sounds warm and spacious, the sound of neo-soul, jazz and mellow R&B. Listen for that character when you play it — if Cm11 does not sound that way, one of the notes is probably wrong, and the table above is the place to check. On the guitar, start with the first voicing above and listen for the notes C, D#, G, A#, D, F in Cm11.
Comparing Cm11 with its closest relatives helps to fix it in your ear. In short, minor 11th against minor 9th: Cm11 adds the 11th F to the minor 9th chord. The extra note widens the sound without changing the function. Play both chords slowly, one after the other, and notice which note moves. Naming that note out loud while you play is the fastest way to learn the difference. On the guitar, start with the first voicing above and listen for the notes C, D#, G, A#, D, F in Cm11.
How to play Cm11 on guitar
On the guitar, Cm11 has 3 voicings in the data below, and each one uses the same notes — C, D#, G, A#, D, F — 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.
For the open position, Cm11 sits in open position: low E string muted; A string at fret 3 (middle finger); D string open; G string at fret 3 (ring finger); B string at fret 4 (little finger); high e string at fret 1 (index finger). The challenge here is the muted string: 1 string is marked x, and it needs to stay silent. Let the edge of a fretting finger rest lightly on it — muting by touch, not by pressing. Strum or pluck it slowly first and check that every note in Cm11 — C, D#, G, A#, D, F — sounds, with no buzz and no accidental open string.
Another way to play Cm11 is the barre chord, in open position: low E string muted; A string at fret 3 (middle finger); D string at fret 1 (index finger); G string at fret 3 (ring finger); B string at fret 1 (index finger); high e string at fret 1 (index finger). It barres across strings 5 to 6 at fret 1 with the index finger. The barre is the hard part: the index finger must press every string from 5 to 6 evenly at fret 1, 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 Cm11 — C, D#, G, A#, D, F — sounds, with no buzz and no accidental open string.
Another way to play Cm11 is the movable voicing, in around fret 5: low E string at fret 8 (ring finger); A string at fret 5 (index finger); D string open; G string at fret 8 (little finger); B string at fret 6 (middle finger); high e string at fret 6 (middle finger). The stretch is the challenge: the fretted notes span from fret 5 to fret 8, so keep your thumb low behind the neck and let your fingers reach rather than squeezing the neck. Strum or pluck it slowly first and check that every note in Cm11 — C, D#, G, A#, D, F — sounds, with no buzz and no accidental open string.
Choosing between the voicings of Cm11 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 Cm11 up the neck to any key without changing the shape. When you change chords, pick the voicing of Cm11 that sits closest to the chord before it — shorter moves between shapes mean faster, cleaner changes. Practise the change into Cm11 from the chord that comes before it in your song, not the chord on its own, because the move is the skill. On the guitar, the open position of Cm11 puts those notes under your fingers in the order the fingering lists them.
A short practice routine for Cm11 on the guitar: play the first voicing four times slowly, checking each note, then change to it from the chord a fourth above C 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 Guitar Chord Finder to see the diagram for Cm11 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 Cm11 sound wrong on the guitar, and each one has a concrete fix. Work through them one at a time rather than trying to fix everything at once.
Crowding the voicing. Six notes need space. Drop the 5th (G) first and spread the rest across octaves. On the guitar, the open position of Cm11 puts those notes under your fingers in the order the fingering lists them.
Losing the 11th. Without F this is just a minor 9th chord. The 11th is the note that makes it an 11th. On the guitar, the open position voicing is the place to hear it in Cm11.
Playing it too fast. Cm11 is a slow chord. At a fast tempo its colour gets lost. On the guitar, start with the first voicing above and listen for the notes C, D#, G, A#, D, F in Cm11.
Barre collapsing on the high strings. In a barre voicing of Cm11, the high strings are the ones that buzz first, because the index finger presses hardest near the thumb. If the top notes of Cm11 sound dead, roll the barring finger slightly toward the fret and press from the arm, not from squeezing the neck. On the guitar, start with the first voicing above and listen for the notes C, D#, G, A#, D, F in Cm11.
Where Cm11 is used
Cm11 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 D# major, the key of G# major, the key of A# major. a minor tonic in jazz and neo-soul, richer than the minor 9th. As a dominant-type chord it also points toward F major, the key a perfect fourth above C, which is the tonic it most often resolves to. That is where Cm11 does its work: not as a home chord, but as a chord that creates movement and then resolves. On the guitar, the open position voicing is the place to hear it in Cm11.
Because Cm11 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 C 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 Cm11 in a progression in any key and hear how it connects to the chords around it. On the guitar, the open position voicing is the place to hear it in Cm11.
The same chord on other instruments is covered in Cm11 on piano, Cm11 on ukulele, Cm11 on bass, and the scales that fit over it are the C major scale and the C minor pentatonic scale. Learning Cm11 on the guitar and then checking it on another instrument is one of the best ways to fix the notes — C, D#, G, A#, D, F — in your memory, because the notes stay the same while everything else changes.
Practising Cm11
A short worked example makes Cm11 concrete. Play the four-chord progression F – C – Dm – A# in F major, the key Cm11 most often resolves toward: F – C – Dm – A#. Play each chord for one bar at a slow tempo, and listen to how Cm11 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 Cm11 itself, and notice how its character changes when it opens the progression instead of sitting inside it. On the guitar, start with the first voicing above and listen for the notes C, D#, G, A#, D, F in Cm11.
For a second exercise, play Cm11 and then the chord a fourth above C, 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 Cm11 is built for when it acts as a dominant. Finish by playing Cm11 on its own, slowly, and naming each note out loud as you play it: C, D#, G, A#, D, F. 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 guitar, the open position voicing is the place to hear it in Cm11.
Frequently asked questions
Is Cm11 hard to play on the guitar?
It depends on the voicing. The first voicing of Cm11 on the guitar 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 Cm11 on the guitar?
The open position is the easiest voicing listed for Cm11 on the guitar: frets x–3–0–3–4–1, fingers 0–2–0–3–4–1. Learn that shape first, get every note ringing cleanly, and only then move on to the alternative voicings further up the neck.
What notes are in Cm11?
Cm11 contains C, D#, G, A#, D, F: root, minor 3rd, perfect 5th, flattened 7th, 9th and 11th. In practice the 5th is often omitted to make room for the extensions. On the guitar, the first voicing above shows where that note sits.
Is Cm11 major or minor?
Minor. Its 3rd is D#, and the flattened 7th A# keeps it mellow. The 9th and 11th add width, not brightness. On the guitar, the first voicing above shows where that note sits.
Where is Cm11 used?
Cm11 is a minor tonic in jazz, neo-soul and R&B, and a ii chord in major keys. It suits slow tempos and open voicings. On the guitar, the first voicing above shows where that note sits.