Unleash Your Groove, Unlock the Secrets!
For beginners, advanced players, and pro’s
also without sight-reading skills

Order the BassMatrix

The new bass book by Philipp Rehm, featuring Ralf Gustke (drums). 296 pages and more than 400 Mp3’s of bass joy. Bass-Drum-Groove-Atlas, Fill-in-Library and much more. | hand-signed | including Tone Navigator bookmark

BassMatrix - Lessons

Welcome To The Bass Matrix!

Unleash Your Groove, Unlock the Secrets!

Are you also looking for the ultimate bassline recipe?
Every bassline and rhythm is based on a sequence of groups: a grouping. With groupings as a rhythmic foundation, you can easily develop your basslines, in any musical style and key. You’ll gain better rhythmic insight, improve your timing, and solidify your groove.

Develop Your Own Basslines with Groupings
In the book ‘BASS MATRIX,’ you will learn all the important bass groupings and how to develop your own ideas from them, using many well-known song examples. We also explore the most essential drumbeat groupings, enabling you to sync your lines more consciously with the beat and find stylish grooves. We dive into many well-known basslines and bass-drum patterns in various styles, from 4/4 to odd meters. We uncover their rhythmic basis and examine how these groupings are then filled with notes. This way, you can learn to develop your own signature basslines, solidify your sense of rhythm, and enhance your groove like never before.

Welcome to the Bass Matrix
Dive into the captivating world of bass playing and discover everything you‘ve ever wanted to know about rhythms, basslines, and Groove Design. Rev up your bass engine with the innovative approach of the BASS MATRIX. With this intuitive method, you’ll achieve in-the-instant progress and suddenly be able to play things you never thought possible before. BASS MATRIX helps you to build up your own groove and fill repertoire, which you can use in all situations to play in a song-oriented, solid and tasteful way – just as you need it for your everyday bass playing. The book is organized into six toolboxes that cover six aspects of bass playing – you can start right where you want. Presented in a form that is suitable for beginners, advanced players and pros alike. No worries about reading sheet music: the BASS MATRIX notation is as intuitive as that of a drum machine. It shows exactly where each note is placed and how long it should sound – so no sight-reading skills required.

Guided by the renowned bassist Philipp Rehm and together with drumming icon Ralf Gustke, BASS MATRIX leads you into new and unexplored musical territories that you will love. Grab your instrument, make yourself comfortable and let’s rock together!

Published by AlfredMusic-Publishing.

In the current issue of the Dutch bass magazine: read more.

For beginners, advanced players, and pros – also without sight-reading skills

The Ultimate Bass Matrix Experience

Open where you want - and get started!

6 toolboxes full of bass joy

Toolbox1 is all about getting into the groove and basic patterns. In Toolbox2, we refine the Groove Design method and then apply it to all key rhythms, from 4/4 to Oddmeter. Toolbox3 teaches you how to develop stylish and suitable bass parts for every drum beat - supported by an exciting bass drum groove atlas. Toolbox4 presents many practical fingering patterns and different bass sounds you can create with them. Toolbox5 focuses on fill-ins and offers an extensive library of groovy variations. Toolbox6 shows you how to transfer bass styles to any groove situation.

Sneak Peak: Reading sample

(Click on one of the pages to enlarge)

Drum-Sequencer-like Notation

The Bass Matrix notation is based on sequencer programs: the foundation is a grid of 8, 16, or 12 boxes (for odd meters it’s 7, 9, 10, 11, etc.). Within this grid, you can visually see the notes placed exactly where they should be played. You can identify their exact length and phrasing, and in Toolbox 3, also the kick and snare positions of the respective drumbeat. In Toolbox 1 and 2, as well as during longer jams, there are also ‘normal’ notes and tabs, an the book gradually transitions into this drum-sequencer-like notation. This type of notation is neither new (it is also common in drum books) nor is it meant to replace traditional notes or tabs. Rather, it helps to visually represent important groove aspects discussed in the book: the interaction of kick & snare with the bass, exact note lengths, rhythmic patterns, and the underlying grouping. Additionally, it saves space and allows for this extensive collection of grooves and basslines, such as in the Bass-Drum-Groove-Atlas, with hundreds of groove examples organized by their groupings. Each example comes with audio files for listening. Where the notes are located on the bass can be found in the ‘Tone Navigator’ – helping you learn your fretboard along the way.

Now exclusively here on our website:

Hand-signed and Bass Matrix Tone Navigator

Here on the website, you receive your book hand-signed and including the practical ‘Bass Matrix TONE NAVIGATOR’ bookmark!

BASS-MATRIX on Spotify & Co.

Bass Matrix Soundscapes

Here you can listen to some of the 438 mp3's in the book. In the big drum & bass groove atlas you can hear the fantastic Ralf Gustke on drums. Bass & Programmings: Philipp Rehm

About the author

Philipp Rehm is a bassist and music producer. Philipp Rehm is not just a bassist and music producer; he’s a sonic architect sculpting vibrant bass melodies and rhythms. His musical journey spans from being a sought-after studio bassist and solo artist to collaborating with influential names like Jazz Against The Machine, the illustrious Tania Kross, The Flames, and the soulful Cassandra Steen in the realms of pop and R&B. Recognized early on as Germany’s Superbass Player by BassProfessor in 2004, Philipp has since etched his name internationally. He graced the cover of the esteemed US-based Bass Musician Magazine in 2021, while across the pond, the French Bassiste Magazine hailed his album “The Philbum” as a “masterpiece among the greats,” previously crowned “Album of the Month” by Germany’s Sticks Magazine. In a mesmerizing fusion of innovation and rhythm, Philipp, alongside the exceptional drummer Ralf Gustke, commands an electrifying Bass & Drum duo. Their avant-garde performances have graced prestigious festivals, captivating audiences with their trailblazing approach. Fueling his passion for bass exploration, Philipp dives deep into the Bass Matrix adventure, sharing his expertise through engaging workshops and teachings at the Mannheim University of Music.

Bass Matrix

Content hub


Check out or latest Bass Matrix Videos!

Tools & Exercises

Here you will find practical practice tools such as midi beats and an Ableton audio library for practicing, slowing down loops, and more. As well as a sound overview, tempo list, and empty matrix template sheets.


Our blog all about the Bass Matrix: Here you will find interesting articles, in-depth insights and examples.


Check out or latest Bass Matrix Audios!

Opinions from the Bass Matrix

"I've only just started to get to grips with the content, but I can already say that it's fun and motivating." ... "The purchase was a good decision."

Review on

"I came across the Bass Matrix on YouTube and although I've been playing electric bass for 30 years and play from both sheet music and tabs, there are lots of new rhythmic ideas and explanations at the start, which are supplemented by YouTube links. Absolutely recommended to buy!!!"

Customer rating on AMAZON

"Beginners, intermediate players, professionals – everyone gets their money's worth. You don't even have to be able to read sheet music, as Rehm has devised a new notation system specifically for this book, which is intuitive and therefore quick to adapt to."

Book review in GITARRE & BASS