Welcome to Learning Modular: a site for musicians and sonic dabblers alike who want to learn more about modular synthesis. Here you will find my online courses, the book Patch & Tweak, a glossary, and additional useful information.

Training link

Training

my Learning Modular Synthesis online training courses

Articles link

Patch & Tweak

the new book I co-wrote on modular synthesis

Videos link

Social Media

where to find my latest online posts, videos and articles

Blog Posts

fundamental concepts, show reports, & more

My most in-depth, up-to-date, insider-information posts may be found on my Patreon channel.
I am also active on other social media channels including Facebook, YouTube, and Instagram.

Below are select posts from this web site on fundamental concepts that will hopefully help your modular explorations. This site also contains additional blog posts on trade show reports, excerpts from my courses, and more; click here for the full list.

The Eurorack Expansion Project

The Eurorack Expansion Project

I created the original Learning Modular Synthesis course for those who were complete beginners to the world of modular synthesis. The next question became: How do I help users reach the next level? The answer is the Eurorack Expansion Project. The idea is you have a nice core system, and want to know how to intelligently expand it – particularly if you interested in a specific technique or are after a certain sound. I’m tackling this in two parts: an online course, and a weekly series – including a dedicated Patreon page for the hard-core users out there.

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Improving Intonation using the AJH Synth V-Scale

Improving Intonation using the AJH Synth V-Scale

One of the potential challenges of using a modular synth is keeping multiple VCOs in tune with each other as well as external instruments as you play up and down a scale. Most VCOs have trim controls to improve their tracking, but they can occasionally be frustrating to use: They may require you to remove the module from the case to access them, or the manufacturer might have not have used high-precision multi-turn potentiometers for the trimming controls. Therefore, I’ve added several AJH Synth V-Scale Variable Precision Buffers to my modular cases, and have been happier for it. What sets it apart is that 4 of its 5 outputs have high-precision trimmers accessible from the front panel, allowing you to improve the tracking of connected modules like VCOs and resonating filters.

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The “Eurorack Expansion” Host Rack

The “Eurorack Expansion” Host Rack

The next big “Learning Modular Synthesis” project is Eurorack Expansion. The idea behind it is that you already have a semi-modular synth or a small modular system, and now you’re wondering what to add next. As the saying goes, you need to walk before you can run. I’ve built up a core set of deceptively boring yet essential modules that will make it easier to interface your core system with the fun new modules you’re dying to try out.

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Unlocking the Expert Sleepers FH-1 ‘faderHost’

Unlocking the Expert Sleepers FH-1 ‘faderHost’

Modern MIDI controller keyboards come with a lot of input options. However, very few MIDI to control voltage + gate (CV/Gate) converters have enough outputs to take advantage of all these performance inputs, plus restrict how you use them to select operating modes. By contrast, the FH-1 comes with eight outputs (expandable to 64), with all of its operating modes available simultaneously. I’ll explain a couple of approaches to harnessing all that power.

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