There are so many synths with layers already, and I didn't see any useful presets so far when all of them are used. And even if there are some, people just listen such presets and then just skip and forget. These days nobody much cares to make drum sequences using conventional synths. Most have a drum synths or drum samplers.egbert101 wrote:
However, professional preset designers, and more serious enthusiasts will. In the case of Synthmaster One or Sylenth1, then two layers are ideal, since otherwise you're limited to only two proper oscillators. However Synthmaster One is limited to one layer, and as far as I'm aware, has no plans for more than one. The same applies to Hive.
Here is at least one example for which two layers are ideal: Percussive sounds. So that one layer concentrates on the 'attack' portion, while the other provides the body of the sound.
Eight layers may seem excessive, but it provides for extremely interesting rhythmic possibilities, such as complex sequences, arpeggios or full drum loops, or evolving drones. Other possibilities are additive synthesis, which is basically what layering is. This is especially useful for organ sounds.
Interesting, considering all the abilities the current softsynths offer right now, the music these days is way more boring and dull than it was just two or even one decade ago.