Herbie Hancock · 1964 · F minor · 16-bar modal vamp
Three chords that refuse to explain themselves. The D♭7 is borrowed, the Dm7 belongs to no key the other two suggest, and the loop works because none of them is trying to resolve.
Analyzed excerpt
Form: 16-bar modal vamp · Bars 1–16 · each symbol lasts two bars
Fm7 | Fm7 | Db7 | Db7 | Dm7 | Dm7 | Fm7 | Fm7
This is a short excerpt quoted for analysis, not the full chart, and this composition is very likely still in copyright. Published versions and recordings disagree with each other about the rest of the tune, and often about these bars too.
Every one of these tunes is assembled out of the same handful of harmonic resources. Jazz Harmony is those resources, explained in the order in which they build on each other.
| Chord | Roman numeral | Function | What it is doing | Confidence |
|---|---|---|---|---|
| Fm7 | i | Tonic | Fm7 is the tonic of Fm. It is where the progression is at rest. | High |
| Fm7 | i | Tonic | Fm7 is the tonic of Fm. It is where the progression is at rest. | High |
| Db7 | subV7/V | Dominant | Db7 is a tritone substitute — subV7/V. It carries the same tritone as G7, the real dominant of C, but resolves down a semitone instead of down a fifth. | Low |
| Db7 | subV7/V | Dominant | Db7 is a tritone substitute — subV7/V. It carries the same tritone as G7, the real dominant of C, but resolves down a semitone instead of down a fifth. | Low |
| Dm7 | vi | Other | Dm7 does not take a functional role in Fm. It sits on VI and is best heard as colour, or as a sign that the tonal center has moved. | Low |
| Dm7 | vi | Other | Dm7 does not take a functional role in Fm. It sits on VI and is best heard as colour, or as a sign that the tonal center has moved. | Low |
| Fm7 | i | Tonic | Fm7 is the tonic of Fm. It is where the progression is at rest. | High |
| Fm7 | i | Tonic | Fm7 is the tonic of Fm. It is where the progression is at rest. | High |
High, medium and low next to each numeral are judgements about musical context, not probabilities. A low rating marks a bar that can honestly be read more than one way. How the ratings are decided →
Numbered against F minor, the excerpt is i – subV7/V – vi. Inside those 8 chords there is a tritone substitute and a chord borrowed from the parallel mode. Take the roots away and keep the third and seventh. In Db7 that is F and B. Those two notes decide where the progression is going, and hearing them move is worth more than naming the chords. Blues for Alice, All Blues and So What use the same device, which is the argument for learning it once properly rather than three times by accident.
Not a song form at all but a sequence of three vamps, each held for a fixed number of bars and then replaced. There is no cadence and no turnaround; the form simply cycles. The second area is the interesting one — it is a dominant a tritone away from where the ear expects to go, and because nothing prepares it, the shift registers as a change of colour rather than as a modulation. The piece is easy to play and hard to sustain, for the same reason all vamp forms are: nothing in the harmony creates an ending.
Herbie Hancock recorded it in 1964 on Empyrean Isles, with Freddie Hubbard on cornet. It had a long second life in 1993, when the British group Us3 built the hit “Cantaloop” on a sample of the original, which introduced the tune to an audience that had never heard the album. That crossover is now part of why it gets called, and it is one of the few jazz compositions with two distinct listenerships.
Open these chords in the analyzer and change them. Move one chord, substitute a dominant, take the ii away — the reading updates and tells you what you just did.
What this device is, and the other standards in the library that use it.
Read →What this device is, and the other standards in the library that use it.
Read →Charlie Parker · 1951 · F major
Chord progression →Miles Davis · 1959 · G major
Chord progression →Miles Davis · 1959 · D dorian / E♭ dorian
Chord progression →The families every standard is assembled from, with examples from the library.
Read →