I agree a complete DX7 emulator as an opcode would be great. Presets could be
called directly or setting all the parameters from an external file maybe (to
allow for alternative presets). Or maybe an emulator for each synthesis stage...
for example (I know this would be illegal) for a Korg 01/W, there should be an
opcode implementing the waveshaping tables from the original instrument (Is
there any way to get them?)... or at least we should have them as ftables to be
loaded by the emulator with the existent opcodes.
You can dor FM synthesis already now with Csound, as "preset" I mean opcodes
without such flexibility but easier to use. Why not?

Terry Cast wrote:

> If I may add my two cents . . .
>
> By "preset" do you mean something imitating (or duplicating) a certain sound
> created by a synth, or the algorithm that produces that sound? The latter
> is, IMO, a better candidate for a new opcode.

> How exactly could you  "do whatever you wanted" with such an opcode?