Many of the biggest sounds in electronic music are layers: several instruments, or several processed copies of one, combined into a single part. Layering gives you size, character and movement that no single patch can.
Why layer
- Range - a sub layer for weight, a mid layer for body, a top layer for presence and air.
- Character - combine an analogue-style synth with a digital wavetable, or a synth with a sampled acoustic instrument.
- Movement - one layer static, another evolving.
- Uniqueness - a combination of sounds no one else has.
Instrument layering
- Split by frequency - give each layer a part of the spectrum. Low-pass the bass layer, high-pass the top layer.
- Split by time - one layer provides the attack (a pluck), another the sustain (a pad).
- Split by stereo - a mono, solid centre layer and a wide, detuned layer at the sides.
- Match the notes - layers usually play the same MIDI; send one MIDI part to several instruments with your DAW's MIDI routing or an instrument rack.
Effect layering
Process copies of the same sound in different ways and blend them:
- Parallel distortion - a heavily distorted copy under the clean sound adds harmonics without losing clarity.
- Parallel reverb and delay - via send effects, so the dry sound stays defined.
- Parallel compression - a crushed copy under the original adds density.
- Filtered layers - one copy filtered and automated for movement.
Effect racks (Ableton), track stacks (Logic) and similar features in other DAWs make parallel chains easy.
Keeping layers clear
- Fewer, better layers. Three well-chosen layers beat eight random ones.
- EQ each layer so it only contributes what it is there for.
- Watch the low end - only one layer should own the sub.
- Check phase and mono - detuned and wide layers can cancel in mono.
- Bus and glue - route layers to one bus and process them together.
- Bounce - commit a finished layered sound to audio so you can treat it as one instrument.
Do this now
- Build a lead from three layers - Pigments, Serum and a V Collection instrument - each filtered to its own range.
- Add a parallel distortion layer to a bass and blend it until you just notice it.
- Check the layered sound in mono and fix anything that disappears.