minor major ninth chord generator
Build and Listen to Minor Major Ninth Chords
Cm(maj9) combines C, E-flat and G with B and D. Minor specifies the triad and its third; major in the parentheses specifies the seventh. The ninth D is a major ninth above C, as in an unaltered ninth extension.
Compare Cm(maj9) with Cm9: B falls to B-flat, while the other four tones stay the same. Hear E-flat and B individually to separate the minor third from the major seventh. At root F, read F, A-flat, C, E and G.
Play the instrument ↑- Chord formula
- 1 · ♭3 · 5 · 7 · 9
- Semitone offsets
- 0 · 3 · 7 · 11 · 14
- C reference
- C · E♭ · G · B · D
- Sound
- Sine reference · A4 = 440 Hz
A minor triad with a major seventh and ninth
Cm(maj9) combines C, E-flat and G with B and D. Minor specifies the triad and its third; major in the parentheses specifies the seventh. The ninth D is a major ninth above C, as in an unaltered ninth extension.
Cm(maj9) is different from Cmaj9, which has E natural, and Cm9, which has B-flat. The two quality words refer to different chord members; they are not conflicting instructions to the generator.
- Degree 1 is 0 semitones above the root in this reference.
- Degree 3 is 3 semitones above the root in this reference.
- Degree 5 is 7 semitones above the root in this reference.
- Degree 7 is 11 semitones above the root in this reference.
- Degree 9 is 14 semitones above the root in this reference.
A listening test for m(maj9)
Compare Cm(maj9) with Cm9: B falls to B-flat, while the other four tones stay the same. Hear E-flat and B individually to separate the minor third from the major seventh. At root F, read F, A-flat, C, E and G.
The Compare minor ninth button retains your chosen root and octave and plays the comparison in root position. Set the current chord to root position for a direct comparison. The note buttons let you isolate the chord member that makes this quality different.
Follow the selected bass through each voicing
This 5-tone reference offers 5 positions. Root position starts with degree 1; First inversion starts with degree 3; Second inversion starts with degree 5; Third inversion starts with degree 7; Fourth inversion starts with degree 9. The bass suffix beneath the chord symbol identifies the actual lowest tone.
Root position preserves compound ninths, elevenths and thirteenths at their original height. The inversion selector first moves the extensions into one octave, sorts by sounding pitch and rotates from the selected degree. These close pitch-class study voicings are different from the complete extended root-position stack; they are not recommended jazz fingerings.
This reference can help identify a minor tonic color with a leading-tone seventh. Its notes fit a melodic-minor collection, but surrounding harmony determines whether that is the appropriate scale choice. The tool does not infer key or progression.
Check C, F and A before transposing further
Begin with C and confirm C · E♭ · G · B · D. Use the F and A example buttons to transpose the same interval collection. Follow the MIDI values if an enharmonic spelling looks unfamiliar: changing the root shifts every sounding note by the same interval.
Use Root octave 2 for a lower reference or octave 5 for a higher one. A root change keeps your selected voicing; the example buttons return to root position. Reset restores C, octave 3 and root position. Stop sound ends the currently active chord or arpeggio.
What playback and the WAV file contain
The displayed notes are synthesized locally using sine waves after your click. The tool does not create a progression, transcribe a song, provide guitar fingering or simulate an acoustic instrument. No camera, microphone, registration or file upload is needed.
Download WAV saves the currently displayed voicing as a 2.4-second mono PCM file at 44.1 kHz with a short fade. It does not export the comparison chord or an arpeggiated performance. If Web Audio is unavailable, the note display and WAV download remain usable.
Theoretical note names preserve each degree and may use double accidentals. Equal-tempered playback gives enharmonic notes the same frequency. This browser tool does not add new extended-chord gestures to the webcam instrument; that instrument has its own triad, inversion and seventh controls.
Play the separate gesture instrument → · Local processing and privacy →
Answers before you play
Minor Major Ninth Chord Questions
What are the notes in C minor major ninth?
C · E♭ · G · B · D. The formula is 1 · ♭3 · 5 · 7 · 9, with semitone offsets 0, 3, 7, 11, 14. These are the complete notes sounded by this generator in root position.
How does this differ from minor ninth?
Compare Cm(maj9) with Cm9: B falls to B-flat, while the other four tones stay the same. Hear E-flat and B individually to separate the minor third from the major seventh. At root F, read F, A-flat, C, E and G.
Are these standard performance voicings?
This reference can help identify a minor tonic color with a leading-tone seventh. Its notes fit a melodic-minor collection, but surrounding harmony determines whether that is the appropriate scale choice. The tool does not infer key or progression. The tool states its complete formula and uses close pitch-class rotations for inversion study. Performance omissions and spacing depend on the instrument and musical context.
Can I play and export without a camera?
Yes. Click Play chord or Play arpeggio for local audio. Download WAV saves the displayed chord even if live audio is unavailable. Camera and microphone permission are never requested.
Why does the displayed accidental look unusual?
Cm(maj9) is different from Cmaj9, which has E natural, and Cm9, which has B-flat. The two quality words refer to different chord members; they are not conflicting instructions to the generator. Note letters follow chord degrees; MIDI numbers show the actual pitches at A4 = 440 Hz.