chordslol

Chord · C# Minor 7th

Cm7 Chord

Cm7 is C#, E, G# and Bsmooth, mellow. The ii in ii-V-I.

Hear it

Cm7 on every instrument

The same 4 notes, 6 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.

×4fr13121EADGBE
Guitar2 voicings
CDEFGAB
Piano3 voicings
1111GCEA
Ukulele2 voicings
9fr1311EADG
Bass1 voicing
2134GDAE
Mandolin2 voicings
×5fr4213GDGBD
Banjo1 voicing

What Cm7 is made of

C#m7 (C# minor seventh) is built from the notes C#, E, G#, B, with the interval pattern 1, b3, 5, b7.

Stack 1, b3, 5 and b7 on a root of C and you get C#, E, G# and B. That interval recipe is what makes the chord a minor seventh chord — move the same shape to another root and the character travels with it, which is why Cm7 sounds like a transposed Cm7.

Minor 7th: Smooth, mellow. The ii in ii-V-I.

Spelling: the notes above are written the way a score would write them, not simplified to the nearest piano key. That is why this chord is spelled with C rather than its enharmonic equivalent.

Keys that contain Cm7

All 4 notes sit inside the scale of 8 keys. The roman numeral marks the degree the chord is rooted on.

Other chords on C

Same root, different colour.

The same minor seventh shape, moved

The identical interval recipe, built on other roots.

Questions people ask about C#m7

What notes are in the C#m7 chord?
C#m7 is made of C#, E, G# and B — the 1, b3, 5 and b7 degrees of a minor seventh chord built on C#.
What keys use the C#m7 chord?
Every note of C#m7 belongs to 8 keys: A Major (iii), E Major (vi), B Major (ii), Cb Major (ii), F# Minor (v), C# Minor (i), G# Minor (iv), Ab Minor (iv). The roman numeral is the scale degree the chord is rooted on.
How do you play C#m7 on guitar and piano?
This page shows C#m7 on guitar, piano, ukulele, bass, mandolin and banjo — 11 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
Is C#m7 the same as Dbm7?
Yes. C#m7 and Dbm7 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; C#m7 is the spelling this site treats as canonical.

Learn the theory behind it

Why Cm7 behaves the way it does — the guides that explain the chord instead of just spelling it.

Functional Harmony: Three Roles, One EngineWhat a seventh chord is for — tension, resolution, and the seat it takes in the key.6 min readThe 12-Bar Blues — Three Chords, A Century of HitsSeventh chords are the whole sound of the blues. Twelve bars is where to hear it.7 min readMajor and Minor Scales — Built from Intervals, Felt in SongsThe flat third under all of this, and the scale it comes from.5 min read