Relative Key Connections: The Chameleon Effect
In this jazz piano improvisation lesson, we bring together all of the core improvisation concepts covered so far in the Autumn Leaves improvisation course.
You will learn how to combine enclosures, chord tone targeting, arpeggio patterns, landing zone phrases, and major and minor 2-5-1 lines into a complete and musical improvised solo.
The Chameleon Effect
This lesson introduces the “chameleon effect,” which shows how the same melodic idea can change colour depending on the harmony underneath it. By understanding how major and minor 2-5-1 lines relate to one another, you can get more mileage from every piece of jazz vocabulary you learn.
Starting A Jazz Piano Solo Simply
A focus of this lesson is how to begin an improvised solo. Instead of launching immediately into fast paced lines, the lesson encourages you to start with simple melodic ideas and gradually build the intensity.
A strong solo often feels like a journey. It begins with space, short motifs, and clear melodic statements before developing towards a natural climax.
Developing Motifs In Your Solo
One of the simplest ways to create a musical solo is to state a short idea, repeat it, and then develop it. This gives your improvisation structure and makes it sound more like a conversation.
Rather than playing unrelated phrases one after another, you learn to connect your ideas. A small motif can be repeated, varied rhythmically, moved through the harmony, and eventually resolved using one of the landing zone phrases from earlier in the course.
Using Enclosures & Arpeggios As A Safety Net
This lesson reinforces the importance of enclosure patterns and arpeggios. Once these are comfortable, they become a reliable foundation that you can always return to during a solo.
Even simple enclosures and chord tone pathways can sound like real improvisation when they are played confidently. From there, you can gradually add full 2-5-1 phrases, melodic fragments, and more advanced vocabulary.
Building Towards A Complete Autumn Leaves Solo
To finish the lesson, the material is demonstrated in the context of a full 4 chorus performance over Autumn Leaves. The solo begins simply, develops through motifs and melodic ideas, and gradually incorporates enclosures, arpeggios, and major and minor 2-5-1 lines.
The goal is to show how all of the individual building blocks from the course can work together inside a complete improvised jazz piano solo.
Practice Tips
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Start your solo with simple ideas - Avoid beginning with fast or complex lines. Use short motifs, space, and clear melodic statements to set up the solo.
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Repeat and develop motifs - Take one small idea, repeat it, then change it slightly. This makes your solo sound more connected and conversational.
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Experiment with the chameleon effect - Try applying major 2-5-1 lines over the relative minor progression, and minor 2-5-1 lines over the relative major progression.
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Use enclosures as a fallback - When you feel unsure, return to enclosure patterns and arpeggios. These help you stay connected to the chord changes.
- Build towards a climax - Think of the solo as a journey. Start simply, leave space, gradually add intensity, and use longer line based vocabulary as the solo develops.

Great course Hayden thank you. Will there be any more sheet music downloads to go with the course?
Hi Niall,
Thanks for your feedback – I’m glad you’re enjoying the course.
Yes I will add some PDF downloads shortly. The video editor has sent me the notation that he used in some of the lessons so I will turn these into PDFs. I usually get our transcriber guy to notate the full performances too which I will do once the course is finished.
I also created a PDF file here which contains the 251 phrases and resolutions: https://pianogroove.com/media/2026/05/Tension-Release-G-.pdf
I recommend to transpose these lines into different keys and apply them to different songs. That’s what we are going to explore in the seminar later today which focuses on the tune “Beautiful Love”: https://www.pianogroove.com/live-seminars/beautiful-love-improvisation-workshop/
I hope that helps Niall and let me know if I can be of further assistance.
Best,
Hayden
I’ve learnt so much since joining Piano Groove. The content is excellent and I can’t wait to get everything under my fingers. Thanks so much for the great teaching.
One question in my mind is how do we apply this if the we play the head of the tune in a ballad, slower tempo like the way it was played in Autumn Leaves for Beginners (https://www.pianogroove.com/jazz-piano-lessons/autumn-leaves-for-beginners/)?
Would we play the improvisation part in the same tempo or slowly pick up the tempo to 120 bpm?
Thanks again.
Hi Benson,
Please excuse my late reply here.
Firstly I’m really glad that you are enjoying the content on the website. Thanks for the feedback and kind words!
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That’s a great question with regards to slower tempo improvisation.
The underlying concepts are the same in that we need to pay attention to chord tones, and targeting chord tones. This is the ‘glue’ that holds our improvised lines together and keeps our improvised melodies in sync with the underlying harmony.
You can check out this course on “Misty Cocktail Piano Improvisation” – https://www.pianogroove.com/jazz-piano-lessons/cocktail-improvisation-for-beginners/ – please see module 3 on “Cocktail Piano Improvisation”.
You will see that we use exactly the same concepts: targeting chord tones, adding arpeggio connectors, and we also dive into some other improvisation concepts.
It’s worth mentioning that improvising when playing solo piano is a little more challenging than when playing with a backing track. The reason is that when playing solo piano, we are also responsible for creating and maintaining the pulse. In the course above we do this by creating a left hand stride pattern, but also alternating our left hand accompaniement with shell voicings and 10th interval voicings.
When playing with a backing track, the rhythm and pulse is already created by the drums and bass, and so we just need to focus on our left hand voicings and our improvised melodies.
When playing solo piano, we have to think about voicings, creating the pulse, and also creating the improvised lines, and so there is an extra component there which is what makes it more challenging.
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My recommendation would be to experiment with the improvisation drills and exercises demonstrated in the Cocktail Piano Improv course. However, I also feel that it’s better to develop familiarity with the chord tone targeting drills whilst playing with a backing track. Once that has been achieved it becomes easier to repeat the same concepts for solo piano, rather than vice-versa.
I did also host my last seminar on slower ballad improvisation drills and exercises, you can see that seminar here: https://www.pianogroove.com/live-seminars/quartet-app-for-practice-improv/ – and again you will see that the emphasis is on chord tone targeting.
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We could do both.
However, in this course we are playing with a backing track and so we are using rootless voicings in our left hand. If we play rootless voicings without a backing track (when playing solo piano) it can sound a little strange as the foundation of the harmony is missing.
“Autumn Leaves” is commonly played up-tempo, and so if you listen to solo piano versions of this song on YouTube or Spotify, you will find that they often include walking bass lines in the left hand and improvisation in the right hand. That’s also a different and more advanced skill to what we are covering in this course.
So in summary: I would say that if you want to learn to improvise over slower songs, pick a ballad such as “Misty” and study the lesson in the course I reference above.
We also have a similar ballad improv-focused course on “The Nearness Of You” which covers the similar improv drills and exercises: https://www.pianogroove.com/jazz-piano-lessons/ballad-voicings-fills-improv/
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I hope that helps Benson, and if you have any follow up questions just let me know.
Cheers,
Hayden