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Home » 9/11 Chords » How to play a C9/11 chord on Accordion

How to play a C9/11 chord on Accordion

    AKA: C7/9/11, C9(11), C9/11, C Dominant 11th, C Dominant 7th/9th/11th, C Dominant eleventh, C Dominant ninth eleventh, C Dominant seventh ninth eleventh

    C9-11 Accordion chord chart

    C9/11 Accordion chord notation


    C, E, G, B♭, D, F


    R, 3°, 5°, m7°, 9°, 11°

    Left hand:

    C + B♭M


    C + CM + B♭M


    2 + 4


    3 + 2 + 4



    2 thoughts on “How to play a C9/11 chord on Accordion”

    1. Your diagram shows six fingers on the right hand. Of course, when played with a C in the bass, you won’t need the c in the treble. Perhaps a discussion of chords in root position and then in inversions might also be a helpful addition to be read before getting into the individual chords.

      1. Sure! You’re right, especially in this case, it would be helpful adding some extra info. I’ve added 6 notes on the keyboard to show intervals but it may result confusing. Thank you for your suggestion!

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