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    1. Home
    2. Chord Library
    3. A sharp
    4. Dominant ninth

    A sharp Dominant ninth

    Dominant seventh with added ninth; richer dominant tension that still resolves strongly to tonic.

    major9

    Guitar diagrams

    Piano voicings

    Which intervals and notes are in the A sharp Dominant ninth chord?

    Intervals from the root that spell this chord and its chord tones.

    To which mode does A sharp Dominant ninth belong?

    Parent scales and degrees where this chord appears as a diatonic sonority.

    Which scales can you play on the A sharp Dominant ninth chord?

    Scales that contain this chord’s notes and usually fit over it.

    Practice the dominant ninth chord

    Open the app and start your daily workout!

    Learn music theory with sonid

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    Sheet music

    Practice the dominant ninth chord

    Open the app and start your daily workout!

    Learn music theory with sonid

    Available on Android and iOS

    The dominant ninth chord extends a dominant seventh by adding the ninth, giving you classic dominant pull with extra color and breadth. In charts, this appears as C9: tense, expressive, and still clearly functional.

    How it's built

    Use 1-3-5-♭7-9. In C9: C-E-G-B♭-D. In practical voicings, the fifth is often omitted so the guide tones (3 and ♭7) plus color (9) stay clear.

    Usage

    In jazz, soul, funk, blues, and modern pop, the 9 is a go-to dominant color when you want richness without losing direction toward resolution.

    Examples

    • Jazz turnarounds - V9 resolving to I or i
    • Funk and soul comping - colorful, groove-forward dominant stabs
    • Pop arranging - refined dominant lift in pre-chorus and bridges

    Play

    Lead the 3 and ♭7 smoothly, and place the 9 where it sings above the voicing. Keep the midrange uncluttered so the dominant function remains obvious.

    NameAliasesDifficulty
    A sharp MixolydiandominantBeginner
    A sharp Chromatic-Easy
    A sharp Lydian Dominantlydian b7, overtoneIntermediate
    A sharp Lydian minor-Intermediate
    A sharp Bebop-Expert
    -Expert
    -Guru
    -Guru
    melodic minor fifth mode, hinduGuru
    A sharp Bebop minor
    A sharp Composite blues
    A sharp Messiaen's mode 3
    A sharp Mixolydian flat sixth
    IntervalsemitonesNote
    Perfect unison0A♯
    Major third4C𝄪
    Perfect fifth7E♯
    Minor seventh10G♯
    Major ninth14B♯
    NameAliasesDifficulty
    A sharp MajorM, ^, , majBeginner
    A sharp Fifth5Beginner
    A sharp Dominant seventh7, domBeginner
    A sharp Suspended secondsus2Beginner
    A sharp Dominant seventh no fifth7no5Intermediate
    9no5Intermediate
    Madd9, 2, add9, add2Intermediate
    A sharp Ninth no fifth
    A sharp Major add ninth

    DegreeTriadSeventhExtendedScale
    I
    II
    III
    IV
    V
    A♯
    13
    A♯
    9
    A♯
    7no5
    A sharp Mixolydian
    VI
    A♯
    m
    A♯
    m7
    A♯
    m9
    A♯
    m11
    A♯
    madd9
    A sharp Minor
    VII
    A♯
    m7♭5
    A sharp Locrian
    A♯
    M
    A♯
    maj7
    A♯
    maj13
    A♯
    maj9
    A sharp Major
    A♯
    m
    A♯
    m7
    A♯
    m9
    A♯
    m11
    A♯
    m13
    A♯
    m69
    A sharp Dorian
    A♯
    m
    A♯
    m7
    A♯
    m
    A sharp Phrygian
    A♯
    M
    A♯
    maj7
    A♯
    M13♯11
    A♯
    maj9♯11
    A sharp Lydian
    A♯
    M
    A♯
    7