The decision you're facing
If you are shopping for a keyboard or piano method book and want to play soul, funk, and R&B grooves, the choice often comes down to how you like to practice. Do you want a broad collection of groove material, or a structured beginner method that builds from basic rhythmic pulses? Both 100 Ultimate Soul, Funk and R&B Grooves books are written by Andrew D. Gordon, published by A.D.G. Productions, formatted as Book, and listed at USD 16.95, so the real difference is in how each edition frames the material. At the same price, the choice comes down to practice style rather than cost.
Quick verdict
The Book/mp3 files edition is the better fit if you want a reference-style groove collection. The Foundational Series is the better fit if you want a beginner-focused method.
At a glance
| Product | Listed Price | Key Attributes | Price Bar |
|---|---|---|---|
| 100 Ultimate Soul, Funk and R&B Grooves for Piano/Keyboards Book/mp3 files | USD 16.95 | Author: Andrew D. Gordon; Format: Book; Instrument: Piano; Country of Origin: United States | |
| 100 Ultimate Soul, Funk and R&B Grooves for Piano/Keyboards Foundational Series | USD 16.95 | Author: Andrew D. Gordon; Format: Book; Instrument: Piano; Level: Beginner; Country of Origin: Canada |
Where each product wins
Both editions cover 100 grooves, so the difference is the approach. The Book/mp3 files edition wins if you want audio material built into the title and a broad groove set influenced by classic soul and R&B artists such as James Brown, Herbie Hancock, Stevie Wonder, Marvin Gaye, Miles Davis, and Parliament.
The Foundational Series wins if you want a progression-first method. The first 90 grooves are built primarily on quarter-note, eighth-note, and triplet rhythms.
Product notes
100 Ultimate Soul, Funk and R&B Grooves for Piano/Keyboards Book/mp3 files

The Book/mp3 files edition works best for players who want a printed groove collection with audio files included. The title makes that bundle clear, and the 100 grooves sit in a classic soul and R&B context, with influences from James Brown, Herbie Hancock, The Crusaders, Marvin Gaye, Stevie Wonder, Parliament, and similar artists. If you enjoy exploring a range of influences and playing along with reference examples, this edition gives you that territory in one book. One limitation: the listed Format is Book, so the print pages are the primary study medium; the mp3 files are part of the title rather than a separate digital-format product. That means you should be comfortable working from a physical book plus audio.
100 Ultimate Soul, Funk and R&B Grooves for Piano/Keyboards Foundational Series

The Foundational Series edition works best for players who want the material organized around rhythm fundamentals. It carries an explicit Level: Beginner label and Language: English, and the first 90 grooves use quarter-note, eighth-note, and triplet rhythms to build timing, feel, chord rhythm, bass movement, and stylistic authenticity. That makes this the pick if you want a teaching-style progression rather than a collection. The limitation is the Beginner label: players who are already comfortable with advanced harmonic and funk vocabulary may find the opening examples more basic than they need. The Country of Origin for this edition is Canada, which is the visible production-geography difference from the Book/mp3 files edition.
Final choice by use case
Pick the Book/mp3 files edition for a groove collection with classic artist influences. Pick the Foundational Series for a structured beginner approach.