Additional types of 7th chords can occur on popular and jazz music. One of these chords, is the C minor-major 7th (Cmmaj7) mandolin chord. Although there are many positions (ways, variants etc.) to play the C mmaj7 mandolin chord, I suggest you start with the slideshow that shows the most common mandolin chord positions for C mmaj7 – displayed on the top of the page above, fingered for your convenience.
For practical reasons, I have included also a Chord Chart for C mmaj7 on mandolin, feel free to print it.
What is a C minor-major 7th (C mmaj7) chord?
The C mmaj7 is a 7th chord, i.e. it consists of four notes with C as root. To construct a minor-major 7th chord you have to use a minor triad and a major 7th interval. So, for Cmmaj7, the minor triad is C-Eb-G, and the major seventh interval is C-B. When these two are combined, they create Cmmaj7 (C-Eb-G-B), as following
The root, which for the C mmaj7 chord is of course C
The third, which for the C mmaj7 chord is Eb. Note that this creates a minor third interval that consists of three half steps (C to C#, C# to D, D to Eb)
The fifth, which for the C mmaj7 chord is G. Note again that this creates a major third interval that consists of four half steps (Eb to E, E to F, F to Gb, Gb to G).
The seventh, which for the C mmaj7 chord is B. Note that this creates a major third interval that consists of four half steps (G to G#, G# to A, A to Bb, Bb to B). It is also a major seventh interval from the root.
Note that half steps correspond to one fret difference between notes played on the same string.
See how the C mmaj7 chord is written on sheet paper:
If you want to understand more on chords theory, i.e. how they are constructed, check out the following popular article I have written some time ago: Understanding Chords Theory.
If you need a blank sheet paper to write it down in order to understand it, you can download one from theMandolinTuner free blank music paper sheet.
How to Practice chords on the mandolin
There are many good articles here at theMandolinTuner for practicing chords. I suggest you start with: