I know as much that R means Root note, but what does the rest mean?

enter image description here

  • 1
    May I ask where this image is from; some chord app? A nice illustration. – dfrib Jun 30 '18 at 9:38
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    Yup, a paid one. I downloaded it from Google Play, here's the link :play.google.com/store/apps/… – Chennyweny Jun 30 '18 at 14:04
  • where did you get this image? I love how the chord is weighted. – Antonio F Delgado May 11 at 16:21
  • @AntonioFDelgado It's from a mobile app called 'chord!' – Chennyweny May 17 at 4:41

R means the root of the chord (A), 3m would refer to the minor third of the chord (C), and 5 to the fifth (E).

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  • 1
    You can also have 3M (major third) and major/minor 7ths, 9ths, 11ths, or 13ths. – General Nuisance Jun 30 '18 at 4:53
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    @GeneralNuisance Wouldn't the "3" alone imply the major third? – Jacob Swanson Jun 30 '18 at 6:05
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    Classical ("Old") music theory books distinguish major intervals with an "M", e.g. M3, M6, M7, as opposed to m3, m6, m7. In modern music no symbol is taken to be Major by default, except in the context of a 7th chord, X7 is assumed to be dominant 7th (flat 7th). – ggcg Jun 30 '18 at 12:49
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    The 5 is a perfect fifth, not a major fifth. There is no major or minor for fifths of fourths. Most tones have diminished, minor, major, augmented, but fifths and fourths just have diminished, perfect, and augmented. – trlkly Jun 30 '18 at 13:06
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    @JacobSwanson Yes, but as ggcg explained, I've seen it both ways. In fact, in Certificate of Merit tests, the capital Ms are generally required when naming intervals. – General Nuisance Jun 30 '18 at 15:52

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