After you've mastered the oscillators and filters (which are covered in Synth 101) it's time to add some life, motion and dynamics to your patches.

In this tutorial Fab explains everything you need to know about:

• What is modulation and why it's essential to sound design
• Envelopes (Attack, Decay, Sustain, Release) and how to visualize what they're doing to the sound
• LFOs (Low Frequency Oscillators) to add expression and motion
• Portamento (aka Glide) to smooth the transitions between notes
• How to route and combine modulations to create complex and unique synth sounds