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Guitar Chord F#7b13: Structure, Notes and Theory

F#7b13 — a chord built on the note “F#” with an energetic sound and a strong pull toward resolution. A classic element of jazz and blues progressions, adding drive and a sense of phrase completion. The chord includes alterations: b13 — a darker tone related to #5, giving a modern dominant color.

To view possible positions and quickly find the most comfortable chord shape, use the interactive fretboard. You can change the guitar tuning, fretboard orientation, and finger display. Detailed instructions on how to use and customize the tool can be found on the main chord navigator page — make the most of it for your convenience.

F#7b13 — Position 1 of 9
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Formula and Structure of the F#7b13 Chord

Interval formula from the root note: 1 — 3 — 5 — b7 — b13. The chord consists of the following notes:

  • Gb — unison and the main tonal anchor.

  • Bb — major third with a bright major quality and clear stability above the tonic.

  • Db — perfect fifth, stabilizing the triad and adding tonal grounding.

  • E — minor seventh with dominant pull toward the tonic.

  • D — flat thirteenth with a modern dominant shade, best in the middle or upper register.

Together, these notes form the harmonic foundation of the F#7b13 chord, defining its sound and role in the musical context.

Alternative Names for the F#7b13 Chord

There are no alternative names for this chord.

Using the F#7b13 Chord

Build a stable frame from the 3 and b7, keeping them in fixed positions. Add colors (#9, b9, #11, b13) sparingly to preserve clarity. Classic usage is II–V–I, but it can also work in bebop runs. It’s useful to omit the fifth temporarily to make room for color tones.

Conclusion

F#7b13 is an expressive and versatile chord. Learn several fingerings, experiment with different positions and voice spacing, then try weaving it into your own playing — this will help you quickly find your unique tone.