How To Be A Layer Slayer
Layering multiple synth patches or multiple drum samples is nothing more than a multi channel version of additive synthesis.
Normally when you think of additive synthesis, you think of mixing saw waves with triangle waves with sine waves and so on. And you may already be DOING THIS in a handful of plugins. But that is just the beginning.
I look at layering as the final stage of sound design. Sure you can design cool sounds exclusively within plugins like Serum, Massive or Sylenth1 and you can call that a finished product. But honestly you’d be cutting yourself short if you didn’t dream within the dream. Yes, I’m talking about Sound Design inception.
So when you look at additive synthesis with that perspective, there is an infinite amount of combinations to be had between different synth patches and samples. And that to me is the essence of sound design.