This might be a bit outside of the practice and theory group but I'll give it a shot.
I have a need to take some internally-generated MIDI files and convert them to MP3 or WAV, but would prefer to not use soundfonts, etc.
I would like to find a Windows based sequencer or utility that would let me configure preset instrument sounds/tracks with VST plug ins which then through command line, script, something... let me load up a preset, pass the MIDI file, and get back a rendered audio file. So if I have a MIDI as a quartet, I point it to the quartet preset with my VSTs configured, and out pops the rendering.
It doesn't have to be a batch as I can easily make something to run it in a loop, I just can't quite find this missing middle tool.
I can create tracks with presets in many of my sequencers and manually do this... but none seem to have the command line/automation I seek, and of the command line/automation tools I find, most of them are based on FM or SoundFonts based on GM instead of letting me get a little more creative.
Has anyone seen something like what I'm looking for?