“What is non-functional harmony?” (A tribute to Wayne Shorter)

In our recent tune “Messenger” we paid tribute to the late Wayne Shorter. In addition to his work as a saxophonist, both as a band leader and a sideman with artists ranging from the Jazz Messengers and Miles Davis to Steely Dan and Don Henley, Shorter was known as an influential jazz composer. One characteristic of his writing was his use of non-functional harmony.

What exactly is non-functional harmony? Perhaps it can be more easily defined by what it isn’t. Non-functional harmony is different from atonality in that it still often features familiar major and minor chords and can have a key center, but the harmonic movement does not follow typical patterns. If atonal music might be compared to abstract art, music with non-functional harmony could be compared to impressionism. According to www.beyondmusictheory.org, non-functional harmony “occurs when no chord ‘wants’ to specifically resolve to the next one…more often than not, the goal is to evoke a mood, feeling or atmosphere…” As this article from Berklee Today points out, creating non-functional harmony is “not so much deciding which techniques to use…but which ones to avoid. Functional harmonic patterns (like II-V-I patterns, dominant to tonic resolutions, circle of fifths sequences, and line clichés) contribute to harmonic predictability and set up expectations in standard tunes.”

Indeed, traditional jazz standards often used II-V-I cadences and other established harmonic building blocks. Many early be-bop staples were reworkings of older tunes, such as Charlie Parker’s “Ornithology”, which used the same chord progression as “How High the Moon.” Some tunes, including “Joy Spring” by Clifford Brown and “Airegin” by Sonny Rollins, had progressions that were more intricate than those of the Great American Songbook era, but still followed similar patterns.

However, following Miles Davis’s “Kind of Blue”, jazz musicians started to break away from the status quo. In the 1960s, Wayne Shorter left his mark on the jazz canon with “Ju-Ju”, “Speak No Evil”,“Virgo” and other tunes which explored new harmonic territory. His boundary-stretching as a composer continued into the 1970s with Weather Report and subsequent solo albums such as “Native Dancer” and “Atlantis.” His compositions were praised for being unpredictable while, thanks to his melodic and rhythmic sensibilities and deliberate chord choices, also accessible to a wide audience. 

Composers and songwriters in jazz and other genres looking to break out of common chord progressions might find inspiration in the non-functional harmonies of Shorter and his contemporaries. In the following three examples, we will look at how Wayne Shorter uses non-functional harmonies to create unpredictable tunes while also using traditional techniques such as motivic development to maintain a sense of structure and continuity.

The harmonies of “Iris” (1965) have roots in the modal jazz of “Kind of Blue”; the half step movement from Cm7 to Db7 back to Cm7 in bars 9 to 12 recall “So What.” However, while the harmonic rhythm of “Iris” maintains the leisurely pace of modal jazz (no chord is held for less than a full measure and four chords are held for two measures), the movement of the chords is less predictable. The Fm11 of the first two bars seems to establish a tonality, only to move to Emaj7 in the third bar and Gbmaj7 in the fourth. The sparse melody enables the listener to digest these changes; though the harmonic movement is not what we expect, the overall effect is not jarring. Bars 5 to 8 introduce a contrast, both in the activity of the melody and in the chord quality: we have two consecutive altered 7th chords, providing variety from the major and minor 7ths of the first phrase. While not a resolution in the traditional sense, the Abmaj7#5 of 7-8 feels like a pause after the prior two busy measures, even with the tension of the E natural in the melody. In the second half of the tune, the melody echoes that of the first half, providing some continuity over the new chords. In the last line, Shorter creates harmonic ambiguity by alternating between dominant 7th and minor chords in a way that is rarely seen in more traditional chord progressions.

In “El Gaucho” (1966), Shorter uses a recurring melodic motif to bring unity to a non-functional chord progression. In the second measure, the motif is repeated higher than in the first, while the harmony moves lower (F to Eb). In the third measure, the motif appears in its original register over a different chord (D minor). The fourth measure appears to be setting up a move to an A tonality (B7 to E7 as a II7-V7), but instead of the expected resolution, the harmony moves back to F, this time minor. By returning to the original tonality via an unexpected route, Shorter employs non-functional harmony in a way that still fits the structure of the tune. Variations of the four-note motif continue over different chords: Gbmaj7 in measures 6 and 8; Dm7 in measures 12 and 14.

Ana Maria” (1975) starts with a progression based around a G pedal. Shorter seems to be building tension that will release to a C tonality (the traditional V-I movement), but he remains in G when the main tune begins. A variation on the first motif is heard over a new tonality in the fifth bar of the “A” section. In the ninth bar, the G tonality returns, now minor. The “B” section begins in the same way as the “A” (Gmaj7) before varying both the melody and harmonies. Because the change in the melody is subtle (E descending to Bb, compared to Eb descending to A), Shorter is able to make a more dramatic change in the harmonies: instead of the G pedal, the bass notes now move downward chromatically, arriving at a Dmaj7 chord in the fifth bar of the “B” section. However, after this variation, the next three bars are the same as the corresponding three in the “A” section. Bar 10 of “B” begins in the same manner as its “A” counterpart before diverging again, moving to Bbmaj7, Am7 and Fm7. We see again how, while the chords don’t follow traditional patterns, they don’t feel chaotic thanks to Shorter’s use of recurring motifs and strategic decisions about when and where to move tonalities.

The opening of our tribute tune “Messenger” uses non-functional harmony inspired by Shorter. The bass line is a tetrachord: D-E-F-G while the triads placed on top of these notes, C, B, Eb and F, don’t fit together in a traditional way. The second measure features another tetrachord in the bass: A-B-C-Db, with more new chords on top: E-F#-D-Ab. However, the chords are played in the same rhythm, serving as a common thread. 

Since the introduction is busy, a slower harmonic rhythm in the “A” section creates variety. The first two chords, F#m11 and Cmaj7, are not related, but are tied together by the melody note of B. After leaving the Cmaj7 chord, the root motion ascends: D – Eb – F, setting up a return to F#m11 in bar 13. However, the chords then diverge from the previous “A” section, with the root motion climbing: G#, A, B. Bars 5 to 11 are repeated verbatim from 21 to 27, but a new chord – F#dim7 at measure 28 – sets up the “B” section.

This section is built around pedal points – first G, then Ab – which contrast the movement of the harmonies, starting out in D minor, moving by minor thirds to F minor and then Ab minor. At measure 39, there is a hint of a ii-V-I progression, with Abm7 and Db7 breaking away from the stepwise root motion that has been common up to this point. The progression eventually will resolve, but not in an expected way: two non-functional hybrid chords in bar 41 (C/D and D/G) create uncertainty before the return of the original theme at “C”. Without measure 41, the root motion would resemble a ii-V-I, but it would still be somewhat unconventional in that the I is minor and the enharmonic equivalent (F# rather than Gb).

If Wayne Shorter had been just a saxophonist or just a composer, he still would have been remembered as a major figure of post-bebop jazz. As both, he left a body of work that will be enjoyed and studied as it continues to influence musical generations to come.

Recognizing, understanding and creating jazz contrafacts

In response to some questions and comments from our last post about contrafacts in music, jazz in particular, we have decided to address the subject further in this “Ask O.P.” post.

The term “contrafact” is defined by Wikipedia as “a musical work based on a prior work.” In jazz, the word is often used to describe a tune that uses an existing composition’s chord progression. A songwriter or composer can use an existing chord progression as a starting point for a new piece, while musicians learning a tune that is a contrafact can gain additional insight by comparing it to its source. Note that from a copyright standpoint, chord progressions are not considered specific enough to qualify as intellectual property, so as long as the composer creates an original melody, they are exempt from charges of plagiarism.

In this post, we will discuss two common chord progressions: the 12-bar blues and the “I Got Rhythm” changes, then explore some specific examples of contrafacts.

Blues progressions

Blues music, in particular the 12-bar progression, has served as the foundation of many songs throughout jazz, country, bluegrass, rock and other genres. Works that are based on this progression usually have three things in common: starting on the I chord (the home key), moving to the IV chord in the fifth bar and a turnaround starting in the 9th bar: a phrase that “answers” the statements if the previous two phrases and sets up a return to the top of the form.

Following are three examples of the 12-bar blues progression in the key of F. The first is a basic example. The second is Charlie Parker’s tune “Au Privave” which shares the same outline as the first example but has more active harmonic movement. The third, “Blues for Alice” is another Parker head with the same framework, but still more movement.

Comparing “Au Privave” (a typical example of “be-bop” blues) to the simpler blues progression, we see differences, but also some similarities. Both of these progressions:

  • Start on the I chord (F)
  • Go to the IV chord (Bb) in the 5th measure
  • Return to the I chord in the 7th measure
  • Start the turnaround phrase in the 9th measure

The first progression uses a V – IV – I turnaround (the 9th measure has a C7, or V7 chord; the 10th measure has Bb7, the IV chord and the 11th measure returns to the I chord) while “Au Privave” uses a ii – V7 – I turnaround (starting on the Gm7, or ii chord, then going to the C7, or V7 chord, then resolving to the F7, or I chord.)

Comparing “Au Privave” to “Blues for Alice” we again notice similarities and differences. The progression starts on the I chord as the other two do, but it quickly moves through several harmonies before resolving on the IV chord in measure 5. Instead of returning to the I chord in measure 7 as the previous progressions do, it continues to explore new harmonic terrain before arriving at the ii chord in measure 9 as “Au Privave” does. From that point on out, it follows the same progression as “Au Privave.”

As a performer, understanding how a simple blues progression can evolve into a more elaborate one such as “Blues for Alice” can help you see the progression as a whole, enabling you to not worry too much about each individual chord. As a composer, seeing how far you can go from the original blues progression and still have the basic framework intact can give you ideas about how to stretch your raw materials farther.

“I Got Rhythm”

Gershwin’s “I Got Rhythm” has a chord progression that has been used by many jazz musicians as the basis for their own compositions. The theme from “The Flintstones” is a commonly cited example of “Rhythm Changes.” Other famous be-bop standards that use Rhythm Changes include “Oleo” by Sonny Rollins and “Anthropology” by Charlie Parker. A more recent example is saxophonist Alison Young’s “One Night Stan.” The progression also made its way into rock’n’roll with the Four Seasons’ “Sherry.” 

Comparing “I Got Rhythm” to “Flintstones” and “Anthropology” we see several parallels. All three follow a 32-bar “A-A-B-A” form. The “A” sections consist of a repeated two bar I-vi-ii-V7 progression (Bb6 – G7 or Gm7 – Cm7 – F7). In “I Got Rhythm” and “Anthropology” there’s the slight variation (circled in blue) of going to the Eb7 and Ab7 chords in the 6th measure. These tunes all have bridges that follow a III7-VI7-II7-V7 progression (D7 – G7 – C7 – F7) with each chord being held for two bars. Changing up the harmonic rhythm from one section to another (note how the chords in the “A” section move quickly while the chords in the “B” section last for longer) is a useful compositional tool to keep in mind should you feel stuck. 

Other be-bop era examples

Several Great American Songbook era standards were used by the first generation of be-bop musicians (Charlie Parker, Dizzy Gillespie, Miles Davis et. al) as the basis for new compositions. A famous example is Parker’s tune “Ornithology”, based on “How High The Moon.” Comparing the two, we see some similarities. Both use 32-bar A-B-A-C (or A-B-A-B’) forms. Both start in the key of G, then switch from major to minor in the 3rd bar, setting up a move to F in the 5th bar. Another major to minor move in bar 7 brings us to E-flat in the 9th bar. The melody of “Ornithology” echoes “How High the Moon”’s D-G-A-B figure (circled in blue) in the first bar and the D-G-A-Bb figure in the third bar when the harmony shifts to minor.

The roots of a contrafact can be a little harder to trace when the new composition is in a different key than the original. However, by looking at relationships between the chords, we can still see parallels. An example of this is Parker’s “Donna Lee”, composed and usually played in the key of A-flat and based on “(Back Home Again in) Indiana”, usually played in the key of F. Though they look different, closer examination reveals that they follow the same blueprint. Like the pair discussed above, both are 32-bar A-B-A-C tunes. Both start with a I-VI7-II7 cadence (F – D7 – G7 or Abmaj7 – F7 – Bb7), then return to the I chord in bar 7. Both arrive at the IV chord in bar 9, use either the #iv diminished or the iv minor chord in bar 10 and return to the I chord in bar 11 before an extended turnaround sets up the next A section. At bar 23, both tunes have modulated into the relative minor (d for “Indiana” and f for “Donna Lee.”) Both tunes use a diminished chord in bar 28 as a pivot to return to the home key at the end of the form.

As a composer, comparing “Donna Lee” and “Indiana” can provide valuable insight into how one piece of music can be elaborated upon and transformed into something else. As an improvisation-oriented performer, understanding the roots of “Donna Lee” – a tune that has something of an intimidating reputation in jazz circles – can help give the musician a place to start learning it.

“Jake’s Shuffle”

Composer David Lockeretz on “Jake’s Shuffle”

I had a young student named Jake who was a fan of classic rock and blues. One day I came up with a riff that I thought he’d have fun playing. The riff sounded like it belonged on the turnaround of a Delta-style blues progression, but I decided to make it the main riff of the tune rather than using it as the turnaround. When I was messing with it, I decided to stay in the I chord instead of going to the IV chord in the fifth bar, as would be typical for a blues progression. I was in the key of D, with drop-D tuning, which Jake enjoyed, and that got me thinking about “So What” and “Impressions” – the two seminal modal jazz tunes, both of which are in that key. I decided to take that modal progression – 16 bars of D, 8 bars of Eb, 8 bars of D – and play it with the blues feel. I did some things to change it up a little – I started off with a vamp, brought in an element of orchestration by having the bass double the guitar on the turnaround line and I also wrote a new melody on the bridge, whereas “So What” and “Impressions” play the melody up a half step on the bridge. Long story short: “Jake’s Shuffle” didn’t start out as a contrafact, per se, but as I was developing it I realized that it might work with the modal progression. Once I saw that, it gave the tune a ready-made outline.

Additional resources

Articled with examples and analysis here and here

Article about baritone saxophonist and prolific contrafact composer Gary Smulyan here

Partial list of notable jazz contrafacts here

One last example

“Tide” by Antonio Carlos Jobim is a Latin jazz contrafact. Listen to it and see if you can identify the original progression and its composer.

What is modal interchange? (A special tribute to Chick Corea and “500 Miles High”)

As we look back on the life and music of Chick Corea, we want to take this opportunity not just to pay tribute to one of his most famous compositions but to discuss how it utilizes a deceptively simple concept called “modal interchange.”

Modal interchange involves borrowing harmonies from the parallel major or minor of the primary key (or mode.) For example, if the main key of the composition is G major, a songwriter or composer can employ modal interchange by using chords from G minor. This can add additional color while maintaining the continuity of the tonality. George Harrison used modal interchange in “While My Guitar Gently Weeps”: the verses are in A minor while the bridges are in A major. Understanding modal interchange and recognizing examples of it can help an improviser analyze a chord progression and spot the relationships between keys, while for composers and songwriters, it can be a gateway to exploring new harmonic territory.

Chick Corea’s “500 Miles High” is a rare example of a tune that has found an audience beyond the jazz world while also remaining a favorite within the community, being recorded and performed countless times the original Return to Forever version of 1973. With use of modal interchange, Corea creates a chord progression that is unpredictable enough to be interesting to player and audience alike while also providing continuity and consistency, allowing the band to really cut loose.

We start off in E minor. The move to G in bar 3 is expected, because G major is the relative major of E minor (they share the same notes). However, by going to G minor instead of the predicable major, Corea employs modal interchange. The next chord, B-flat major 7 (bar 5) is also from this borrowed key center; B-flat is the relative major of G minor.

Following this, the progression enters a minor ii-V-i setup to a new key, A minor, reached in the 9th bar. The next chord, F#m7b5 (bar 11) hints at a possible return to E minor as the ii chord of another ii-V-i sequence. Instead, we go to Fm7 (13) which leads to Cm11 (15). This is another example of modal interchange as, given the new key of A minor, F maj 7 and C maj 7 would be the expected chords. The Cm11 serves as a pivot: it starts as the i minor chord of a new key center, but by moving to B7 (bar 17), it becomes the flat 6 of a turnaround to the original key of E minor, with B7 serving as the V7 chord.

Here is a summary of each chord and the role it performs.

Like any compositional tool, modal interchange is just that – a tool that can give the musician another way to express themselves. “500 Miles High” presents some interesting and instructional examples of modal interchange but more importantly, it has communicated emotion to listeners and performers for almost 50 years as one of Chick Corea’s many lasting contributions to the world of music.

 

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