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    YoutubeMusic Theory Video SeriesA step-by-step guide to music theory fundamentals. These 60-second videos provide a clear, structured path to understanding how music works, optimized for a full-screen learning experience.YoutubeMusic Theory ShortsMaster music theory concepts in 60 seconds or less. Quick, vertical videos designed to give you essential theory knowledge in a fast-paced, mobile-friendly format.
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    1. Home
    3. Chord Library
    5. A flat
    7. Dominant seventh flat fifth

    A flat Dominant seventh flat fifth

    Dominant 7 with ♭5; tritone-forward dominant color with sharper instability.

    major7♭5

    Guitar diagrams

    Piano voicings

    Sheet music

    Which intervals and notes are in the A flat Dominant seventh flat fifth chord?

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

    Which scales can you play on the A flat Dominant seventh flat fifth chord?

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

    Practice the dominant seventh flat fifth chord

    Open the app and start your daily workout!

    Learn music theory with sonid

    Available on Android and iOS

    Practice the dominant seventh flat fifth chord

    Open the app and start your daily workout!

    Learn music theory with sonid

    Available on Android and iOS

    The 7♭5 dominant emphasizes tritone character and introduces a leaner, unstable fifth. It sounds tighter and more angular than a plain dominant seventh, making it effective for tension-forward harmony.

    Construction

    Formula: 1-3-♭5-♭7 (optionally with 9/13 context). In C: C-E-G♭-B♭. 3 and ♭7 keep dominant function while ♭5 sharpens dissonance.

    Usage

    Common in jazz turnarounds, altered dominant preparation, and chromatic passing dominants.

    Play

    Voice 3 and ♭7 clearly, keep ♭5 present but balanced, and resolve inward or outward by semitone for a convincing cadence.

    NameAliasesDifficulty
    A flat Alteredsuper locrian, diminished whole tone, pomeroyEasy
    A flat Chromatic-Easy
    A flat Leading whole tone-Easy
    A flat Whole tonemessiaen's mode #1Easy
    A flat Whole tone pentatonic-Easy
    -Easy
    lydian b7, overtoneIntermediate
    arabianIntermediate
    -Intermediate
    -Expert
    -Expert
    -Expert
    -Expert
    -Expert
    dominant diminished, messiaen's mode #2Expert
    -Guru
    -Guru
    -Guru
    -Guru
    -Guru
    -Guru
    -Guru
    A flat Enigmatic
    A flat Lydian Dominant
    A flat Locrian major
    A flat Lydian minor
    A flat Hungarian major
    A flat Lydian dominant pentatonic
    A flat Prometheus
    A flat Flamenco
    A flat Oriental
    A flat Half whole diminished
    A flat Composite blues
    A flat Prometheus neopolitan
    A flat Super locrian pentatonic
    A flat Messiaen's mode 3
    A flat Messiaen's mode 6
    A flat Neopolitan major pentatonic
    A flat Mystery sharp first
    IntervalsemitonesNote
    Perfect unison0A♭
    Major third4C
    Diminished fifth6E𝄫
    Minor seventh10G♭
    NameAliasesDifficulty
    A flat Dominant seventh no fifth7no5Intermediate
    A flat Major flat fifthMb5Guru