F Dominant 9th

F9

Notes

F · A · C · Eb · G

Intervals

  • RootF (1P)
  • Major 3rdA (3M)
  • Perfect 5thC (5P)
  • Minor 7thEb (7m)
  • Major 9thG (9M)

Fretboard

EBGDAE357912FGACEbCEbFGAGACEbFGEbFGACACEbFGAFGACEb

About

The F9 dominant ninth (F–A–C–E♭–G) extends a dominant 7 with a ninth. The G adds brightness and harmonic richness without affecting the chord’s dominant function — the tritone between A and E♭ is still present and still drives resolution to B♭. The 3rd and ♭7 remain essential; the 5th is routinely dropped on guitar to make room for the 9th without creating a muddy cluster. Common in funk, jazz, and blues as a more colorful version of the dominant 7. Compared to F7, the 9th adds shimmer and modernity; the resolution tendency is identical.

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