Synth Artist Thought Experiment to Discover the Modular Already In Your Rig

Back on March 7th I presented a workshop in Boulder called "Intro to Patching Virtual Modular Synths". I thought I'd pass along a concept from this workshop that might save you money as well as inspire you to start down the path of modular and semi-modular sound design with your existing rig.

Many of you already have modular and semi-modular synths but don't necessarily view your current rig with this lens. To illustrate this idea I came up with the following thought experiment.

I've spent a lot of time doing sound design on the Waldorf Blofeld. It's not one knob per function, but does have a nice display with interactive feedback on sound design elements. It's also semi-modular. After some dedicated use with instruments like this and more complex plugins, you start holding the architecture in your head. As a thought experiment I thought it would be interesting to pull apart the modules used in a Blofeld preset and rack them up as if they were in a hardware rack – then draw patch cables that represent what is really going on with the preset and signal path.

I also own Waldorf Largo which is very similar to the Blofeld (see this post and mindmap Waldorf Largo vs Blofeld). This being the case, to save time,  I took screen shots of the Largo and then laid them out in a "case".


 Here is the closeup.


Using the matrix in Blofeld, or just about any other instrument that has a robust modulation matrix, you can override the default signal flow and – voila – you realize you have a  modular or semi-modular  hidden in plain sight within your rig :^)

One last note on the Blofeld before you move on. If you have a Blofeld, make sure you schedule some time to check out binary modifiers in the mod matrix. Here is an excellent paper on the topic from

To illustrate some of the sonic range you can get with an instrument like Largo/Blofeld when you take advantage of the mod matrix to add real-time expression here is horror soundtrack I produced solely using Largo in one real-time improvised pass.

When you are alone in the dark your mind will play tricks. 

Over the last year I've been spending time listening to the tone. harmonics, overtones, and distortion created by expressive electric guitar greats like David Gilmour. "Alone in the Dark" is my exploration of expressive manipulation of harmonics and distortion with a single synthesizer patch custom programmed. As a result you'll hear me go beyond the sonic range of guitars into the sub-harmonic realm.

Another awesome synth you might not have considered as  semi-modular is Native Instruments Absynth. All along it's signal path you can use the edit button to swap in a huge variety of modules overriding the default module for each slot.


You can even swap modules within modules. For example, if you select a filter type that supports feedback, you can swap in a wave shaper, frequency shifter, or ring modulator. 


BTW – Manipulating the audio in the feedback of the filter is a great way to add non-linear results to sounds that would normally be in the realm of unstable analog circuits. 

A sound design experiment showing the darker virtual analog modelling side of Absynth (no samples here) to illustrate Absynth's range beyond the typical motion pad :^) This piece is an improvisation using an original preset patched with two oscillator in single mode and two Filters with feedback. I'm using waveshaping feedback mode and modulating filters and resonance with envelopes which creates the sonic movement as the envelopes play out. 

Another great and affordable choice if you want the vibe of working with patch cables is U-HE ACE. It's only around $80, sounds fantastic, has a very good manual, has a great set of free YouTube tutorial videos and recipes produced by U-HE, and is way more than the sum of it's parts.


 It's a great learning and teaching instrument and using ACE will help you wrap your head around modular sound design recipes. Working with ACE could help you make better decisions about what you might want in a hardware system.

To help give you a jump-start check out my U-HE ACE Patch Cable 101 video – 29k views and counting :^)


Need more than ACE? 

Here are some other excellent choices in the virtual realm.

Of course this is a partial list of what's available. Pop the hood on some of your favorite virtual instruments – or put a new lens on the way you look at your existing hardware. Perhaps you'll find some modular and semi-modular joy in what you already have. 

I hope this post inspires you to use what you've got and/or helps save you time in money when considering choices in the hardware realm. Happy patching!

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Hi, this is Mark Mosher. Welcome to my blog. I’m a synthesist, Composer, Producer, and Visualist living in Boulder CO. I’m also the founder of the Rocky Mountain Synth Meet and Synth Patrol.

I’ve been blogging wince 2005 and this blog is a mix of posts on artistic news as well as synth tech & technique posts under the category Modulate This!

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