Map it slowly
Find C on string 6 at fret 8. Play string 6, fret 8; string 6, fret 11; string 5, fret 10; string 4, fret 9; string 4, fret 10. Use a relaxed position and release pressure between repetitions. String 1 is high E.
Arpeggio · Cm△7 · Guitar
The Cm△7 arpeggio is C – E♭ – G – B — chord tones 1 ♭3 5 7. Cm△7 is a minor tonic with a raised seventh — the melodic-minor tonic; its sound is noir, cinematic. Below, every C, E♭, G, B on the fretboard is marked, with the root in gold. Press play to hear a one-octave arpeggio, or tap any note.
Visualizer
Guitar · standard tuning
Piano
Play loops the arpeggio up and down one octave (switch Loop off for a single pass) in the position starting at fret 8. Tap any marked note to hear it. “Show” switches or combines the fretboard and keyboard; “Sound” picks the instrument you hear. Audio is synthesized in the browser.
Your next 10 minutes
Find C on string 6 at fret 8. Play string 6, fret 8; string 6, fret 11; string 5, fret 10; string 4, fret 9; string 4, fret 10. Use a relaxed position and release pressure between repetitions. String 1 is high E.
Play C – E♭ – G – B in quarter notes at 60 bpm. Repeat starting from E♭, wrapping back to C. Do not speed up until every attack is even.
Alternate E♭ and B above a sustained C. These are degree ♭3 and 7. End a four-bar phrase on either one instead of always returning to the root.
Listen for this: Cm△7 has the colour “noir, cinematic”. Name the degrees as you play, so you can recognize the sound in another key rather than remembering only a shape.
Understand the sound
The minor third and major seventh pull in different directions. Keep the seventh audible so the chord is not mistaken for an ordinary minor seventh.
Here the third is E♭, and degree 7 is B. Play C in the bass and compare these voices individually before combining them.
Try E♭ – G – B – C as quarter notes, then repeat the first note and omit the last. The second phrase uses the same harmony with a different shape.
Sound the strings separately before playing them together. If a note is muted, adjust the finger angle instead of squeezing harder.
Start with C on string 6, fret 8. The next note E♭ is on string 6, fret 11. Name both notes aloud before playing, then find the same two pitches in another octave.
Before moving on, close the diagram and name the notes: C · E♭ · G · B. Then play a two-bar phrase from memory and leave two bars of silence.
On piano
Reference
| Chord tone | Note | Interval from C |
|---|---|---|
| 1 | C | unison (0 semitones) |
| ♭3 | E♭ | minor 3rd (3 semitones) |
| 5 | G | perfect 5th (7 semitones) |
| 7 | B | major 7th (11 semitones) |
Goes with: C Melodic minor (C D E♭ F G A B). Voicings: Cm△7 voicings on guitar.
Take it to the bandstand.Practice Radio streams endless changes to play the Cm△7 arpeggio over through all twelve keys, with the chord and scale shown live — plus ear-training and call & response modes.
▶ Open Practice RadioCommon questions
C – E♭ – G – B. As chord tones: 1 ♭3 5 7. Played one after another instead of together, that is the arpeggio.
Cm△7 is a minor tonic with a raised seventh — the melodic-minor tonic. Its character is noir, cinematic.
C Melodic minor (C D E♭ F G A B) — the arpeggio is the skeleton of that scale, so practise them together.
Start on the root C on the low E string at fret 8 and play E-string fret 8, E-string fret 11, A-string fret 10, D-string fret 9, D-string fret 10. Then play it descending, then in eighth notes with a metronome, then use it in a short phrase over a suitable chord.
Keep going
Same arpeggio on piano · Minor-major 7th hub · chord-scale theory.
Other arpeggios from C