Extended · C# root / D♭
C#m9 / D♭m9
Rich and soulful. A favourite in R&B and jazz voicings.
Notes in C#m9
C# / Db sits between C and D. A common key in jazz and pop — think Db major in many jazz standards.
Identify the Chord Quality on C#
Each chord below is played on C#. Listen and identify whether you heard C#m9, C#m, C#7, or another quality — the hardest and most useful ear training skill.
Minor 9th in All 12 Keys
Other Chords in C#
Related Extended
About the C#m9 Chord
The C#m9 chord is a minor 9th chord built on C# (also written D♭m9). It contains the notes Db, E, Ab, B, Eb — the root, third, fifth, seventh, and extensions.
Rich and soulful. A favourite in R&B and jazz voicings. Practising the C#m9 chord across different voicings and contexts builds the harmonic recognition that lets you identify it instantly in any musical setting — whether in a band mix, a recording, or a live performance.