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Modular in software: VCV Rack for learning & planning

L1Foundations 3h E · Modular, Eurorack, grooveboxes & dawless 12 atoms

Learning objectives

learner can navigate VCV Rack — add modules, patch cables, and stack outputs
learner can apply VCV's voltage standards and cable types to build patches that transfer to hardware
learner can use VCV's polyphony model and gotchas (one-sample delay, dBFS) when prototyping

Capstone — one whole task that evidences the objectives

Recreate a hardware patch idea entirely in VCV Rack — correctly typed audio/CV cables, at least one polyphonic chain — and document how its voltages and quirks map to a real Eurorack build.

Prerequisite modules

Reading modular signals: CV, gate, trigger & voltage

Eurorack is expensive and unforgiving: a wrong module choice costs hundreds of euros and rack space. This module builds the skill that saves you from that — prototyping a complete modular patch in VCV Rack so faithfully that it doubles as a shopping list and wiring diagram for a real build. That is how working modular artists actually plan systems, and it is also a legitimate performance rig in its own right for techno and ambient sets on a laptop.

The arc starts fully supported: install Rack, then get fluent with the two motions you will repeat hundreds of times — adding modules via the Module Browser (right-click an empty rack space) and fanning one output to many inputs with Ctrl-drag cable stacking. These are the part-task drills; they must become reflexes so your attention stays on the patch, not the tool. From there, exercises tighten the conceptual screws: distinguishing audio from CV cables, internalising the voltage standards (±5 V audio, 0–10 V CV, 10 V gates) and the 1 V/oct pitch convention, because these are exactly what transfer — or fail to transfer — to hardware. A final scaffolded step introduces a polyphonic chain and the two quirks that bite prototypers: the one-sample cable delay that silently breaks clock/reset ordering, and Rack’s dBFS metering where full scale is 10 V.

Every required atom is load-bearing for the capstone: you cannot recreate, correctly type, and document a transferable patch without them. The supporting atoms deepen the same territory — how mono modulation fans across polyphonic voices, why “signal type” is a functional convention rather than a physical one, and why raw modular output still needs mix processing — enrichment worth reading, but the capstone stands without them.