In these cases what would a "System" mean? Unless you were just referring to the Console's "Sound Operating System" at the beginning, as if you were saying "Writing to" the sound operating system. In those sentences I'm comprehending it as something like a program written for the composer to help them compose music under the limits of the console, or something along the lines of that. I apologize for my confusion
Yes, I was just referring to the "Sound Operating System" (although the SOS was something that game developers generally had to write themselves-- the consoles didn't come with one, for the most part.
It is pretty confusing.. the SOS runs on the console itself, and it interprets data files to control the synthesizer.
Basically I was asking if there was a way to simulate/emulate the sounds of the console's sound chips on the computer being used for development. With that "Special MIDI Interface" did you hear the sounds resulting from the key presses straight out of the SNES, with it being plugged into a TV/Speakers or was it also plugged into a computer with the sounds going into it so you could hear them from that?
No, there were no 'emulators' that would run on a PC to let you hear what the sound chip would sound like. This was 1990, when a state of the art PC was a 30Mhz--computers these days are literally a thousand times more powerful when you consider clock speed, multi-core and vector instructions.
"VST" wouldn't be invented for another 6 years.
Yes, you could hear the results of pressing on a MIDI keyboard and hear the results coming right out of the SNES.
When we finally got that working, it was a great boon to productivity (before that we had to do a lot of file copying--using floppys, and run some other magic to make the SNES make sound).