"Backdoor" — resolution to tonic via bVII⁷ instead of V⁷. Characteristic "side" or "back door" resolution in jazz.
The bVII⁷-I cadence with 2 chords creates a concise but clear harmonic motion. The character depends on context and surrounding harmony.
In the bVII⁷-I cadence each chord serves a role: bVII⁷ — Dominant Substitute, I — Tonic. bVII7 contains the 4th and 6th degrees of the scale, which pull to the 3rd and 5th degrees of the tonic. This is a "wrapped" path to I — not through the sharp V7 tritone, but through smoother motion. Hence the "back door" feeling.
Tension builds through the stepwise motion. The nature of resolution is defined by the final chord of the cadence.
The bVII⁷-I cadence is typical of major. Jazz fusion, neo-soul, reharmonizations, soft resolutions in jazz.
Common modifications: replacing one chord with an inversion, adding passing chords, rhythmic variation. Extending the cadence is achieved by adding preceding or following chords.
The bVII⁷-I cadence is used for creating a particular harmonic color. Jazz fusion, neo-soul, reharmonizations, soft resolutions in jazz. In form, it can appear at the end of a verse, chorus, or section. When analyzing harmony, notice how the cadence affects the perception of form — it can emphasize structural boundaries or blur them.
On guitar, the bVII⁷-I cadence can be played in open position (keys of C, G, D, A, E) or with barre chords (any key). Pay attention to voice leading — try to keep common tones in place while other voices move smoothly. This creates a more connected and professional sound. Also try playing the cadence on higher frets using partial barres and jazz voicings.