Stuck on Rhythm Changes? Here Are 4 Coltrane Concepts That’ll Set You Free
Every improviser has to face it at some point…
We’re talking about those 32 bars of music that you know as Rhythm Changes.
Sure it’s easy enough to sing the melody…
And you’ve heard all the recordings of famous musicians playing circles around this familiar chord progression.
But when it comes improvising your own solos it can be tough.
A single scale doesn’t work and the chords are changing too quickly to think about music theory or those fancy lines you’ve memorized.
To sound great on this tune you need something else…
Time to learn from an expert
So what are you going to do?
You can look in books for patterns. You can think about music theory. You can even try to fake it with a few scales.
But that’s not music…at least not the kind you would pay to hear at a concert.
To start playing the way you envision, you need to get answers from someone that knows what they’re doing. And that means searching for the best recordings and learning why those players sound great.
When you transcribe the solo of a master musician and figure out why it works it’s like having a mentor tap you on the shoulder to say, “Hey, instead of that stuff you’ve been playing, try playing it like this!”
Let’s take a listen to John Coltrane’s solo on Oleo from the album Relaxin’ with the Miles Davis Quintet:
Sounds great, right? Now what you can learn from this solo that will change your own playing?
Today we’re going to break down four key concepts from Coltrane’s solo to find out why it sounds great. Along the way we’ll give you some essential practice exercises to develop these techniques in your own solos.
Let’s get started…
I) Improvising over I-VI-ii-V’s
The first step to improvising over Rhythm Changes is learning how to play over a single chord progression… I – VI – ii – V7.
This chord progression might not look that important at first glance, yet it’s in nearly every standard that you’re going to play.
From Rhythm Changes to the blues to the turnarounds in countless standards this is a progression that you need to master.
In the key of Bb, I-VI-ii-V7 looks like this:
So how are you going to sound good on this progression? Well, like any musical obstacle, find a player that sounds great and find out why their lines work.
And this is where that Coltrane solo comes in handy.
When you listen to the solo you probably thought it sounded great, but maybe too complex. However, if you listen more closely you’ll find that he is using the same musical devices over and over again.
Here are 3 ways that Coltrane plays over these chords using the same melodic and harmonic concepts:
Notice how Coltrane uses the same devices in all 3 lines:
- Enclosure on the C
- F Bebop scale leading to the F7
- Melodically changing direction to add interest
Listen to the 2nd line and note how he encloses the C and uses an F Bebop scale to reach the F.
- Play the roots of the I-VI-ii-V progression in all 12 keys
- Play the triad of each chord in every key (ex. Bb triad, G triad, C minor triad, F triad)
- Pick one of the 3 Coltrane lines from above and memorize it in key of Bb. Start with the metronome at quarter = 60-70 and gradually increase the tempo until you can play it along with the recording.
- Now learn that line in every key, starting with Bb and moving either up or down by half-step.
II) Tritone Substitution
One method that Coltrane uses to add some harmonic interest to his lines is the tritone substitution.
Simply substituting the V7 chord in a progression with a chord a tritone away. For example, in a ii-V7 – I in the key of Bb, the F7 chord would be substituted with a B7:
You’ve probably heard of bebop players using tritone substitutions as a reharmonization technique, but the technique of substituting chords, especially implied melodically, is something that all great players do.
Check out how Coltrane uses this technique in his solo on Oleo:
Instead of following the standard chord progression, he substitutes a Db7 for G7 and a B7 for F7.
Take another listen to those tritone subs (this time at a slower speed):
Note how this substituted progression creates a descending chromatic root movement from Db7 to C to B7 to Bb.
Coltrane utilizes this half-step movement in his solo in the line below. Essentially thinking of three major triads in a row – Db, C, and B which resolve to Bb in the next measure.
- Visualize the tritone sub chord for each V7 chord in every key, for example G7 >> Db7
- Now visualize the tritone substitution within a ii-V7-I progression in all 12 keys
- Your ability to use these sounds in your solo depends on how fast you can see them in your mind so make sure you spend time visualizing each key!
- Take one of the Coltrane tritone sub ideas and practice it in every key
III) ii-V’s on the Bridge
The next challenge of improvising over rhythm changes is the bridge…
Eight bars of V7 chords moving around the cycle of fourths that come back every chorus. What exactly are you supposed to play over these chords??
This question stumps many improvisers. A sequence of dominant chords that lead right into other dominant chords. Do you just cut and paste scales?
Not if you want to sound musical.
Let’s check out what Coltrane plays the first time through the bridge:
The reason that this line sounds good is that he’s playing musical language, not scales. And the reason his lines have forward motion is that he’s thinking of ii-V’s…
Over each two bar Dominant 7 chord he is implying a ii-V7 instead a static dominant chord. For example, over the G7 chord he plays D minor to G7:
- The concept can of playing ii-V7 instead of just V7 can be applied to any V7 chord that you encounter. Begin by visualizing the related ii chord for every V7 sound (ex. G7 >> D-)
- Take the bridge to Rhythm Changes in Bb and visualize a ii-V7 over every 2 bar V7 chord.
- Do this in every key.
- Now take a ii-V7 line that you know and apply it to the bridge of Rhythm Changes.
IV) Implying minor and major over V7
Another way that Coltrane approaches these static dominant chords on the bridge is from the b7 scale degree.
For instance a C Major sound over a D7 chord.
Practice approaching V7 chords from the b7 scale degree. You can start with arpeggios or other major language that you’ve developed.
(This is the same concept that Fats Navarro’s played over the bridge to Rhythm Changes that we looked at in this post!)
- Practice visualizing the related ii chord for every V7 chord in all 12 keys (ex. D7 >> A-)
- Visualize a major arpeggio from the b7 of a dominant chord in every key (ex. G7 >> F-A-C-E)
- Practice applying minor language that you know over related V7 chords in your solos
- Play a major 7 arpeggio from the b7 of every V7 chord.
Now it’s your turn
With these four Coltrane concepts you’ll have more than enough material to head into the practice room.
And if you put these ideas to work in your playing you’ll begin to see Rhythm Changes in a new light.
However, practicing these concepts is only the first step…
Remember, knowing the theory behind each of these concepts isn’t enough. You need language to make them musical.
Start by getting inspired with the melodies that Coltrane played and then find new ways to create your own!
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