Jerry Bergonzi Inside Improvisation Vol. 5: Thesaurus of Intervallic Melodies
Read Bergonzi Vol. 5 as a focused practice system for wide intervals, interval cycles, angular melody, and modern line shapes that escape stepwise habit.
Published Jun 13, 2026, 9:00 AM
Read Bergonzi Vol. 5 as a focused practice system for wide intervals, interval cycles, angular melody, and modern line shapes that escape stepwise habit.
Inside Improvisation Series, Vol. 5: Thesaurus of Intervallic Melodies belongs in a major music bookshelf because it changes how a practicing musician names problems. This JolyBook note reads the book as a working source: what it asks the ear to notice, what it gives the hand to practice, and where the idea needs careful interpretation.
Why this book matters
Inside Improvisation Series, Vol. 5: Thesaurus of Intervallic Melodies belongs in the JolyBook shelf because it isolates one improvisational problem and gives the player a repeatable way to work on it. Bergonzi does not treat vocabulary as decoration. The material is meant to become a behavior: something the ear recognizes, the body can execute, and the player can vary under musical pressure.
The central focus of this volume is wide intervals, interval cycles, angular melody, and modern line shapes that escape stepwise habit. That focus is narrow in the best sense. A musician can practice one device deeply enough to hear where it works, where it becomes mechanical, and how it can be transformed into phrase material.
The larger lesson across the Inside Improvisation series is disciplined limitation. Instead of trying to learn every possible jazz idea at once, each volume gives the player a smaller laboratory. The player studies a device, moves it through keys and progressions, then tests whether it can survive inside repertoire without sounding pasted on.
How to practice the idea
Choose one interval pair, build a four-bar melody from it, then edit the contour until the leaps sound singable.
- Choose one intervallic melody exercise and sing it without the instrument.
- Play it in four keys at a tempo slow enough to control articulation and time feel.
- Write the same idea over ii-V-I, minor ii-V-i, and a static modal vamp.
- Create three variations: one rhythmic, one intervallic, and one register-based.
- Improvise a chorus using the idea only twice, then leave space so the line sounds chosen rather than automatic.
Analysis frame
| Focus | What to hear | Practice decision |
|---|---|---|
| Interval pair | A chosen distance creates melodic personality. | Name each leap and its inversion. |
| Contour | Leaps need shape, recovery, and register logic. | Balance large jumps with direction and arrival. |
| Harmony | Wide intervals can outline upper structures. | Mark which notes become tensions over the chord. |
| Playability | Angular melody still has to sing. | Slow the line and remove awkward leaps. |
Core takeaways
| Reading focus | Practical takeaway |
|---|---|
| Modern contour | Intervals can free a solo from scale gravity. |
| Control | A leap is strong only when the next note explains it. |
| Upper structures | Intervallic lines can imply rich chord color. |
| Editing | Angular material needs more phrasing discipline, not less. |
Interactive examples
Reading caution
Bergonzi practice becomes shallow when the device is played as a pattern dump. Every exercise has to return to time feel, phrase shape, harmonic aim, and personal sound.