17 Lessons • 6 Core Concepts

Learn the SP-404MK2
through the lens of Reason

Master the Roland SP-404MK2 sampler using the mental model of Propellerhead Reason's Rack. Understand the "why" behind every button.

Two Ways to Learn

Choose your learning style. Deep conceptual understanding or quick reference workflows.

Concept Mode

Deep dive into the Reason Rack mental model. Learn the "why" behind every feature through visual analogies and signal flow concepts.

  • Dr. Octo Rex → Loop Engine
  • Rack Cables → Signal Flow
  • MClass → Master Strip
Explore concepts

Quick Reference

Get straight to the point with button-by-button instructions. Perfect for when you just need to know which buttons to press.

Basic Sampling

RECSelect padREC
View quick refs

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