I've just noticed, Cthulhu () and realized that there ARE VST plugins that can generate MIDI data (eg. loop sequencers, arpegiators) which can be sent to other tracks within a DAW like Ableton or FL Studio.
I want to write one of these myself, to algorithmically generate musical tracks that are sent to other instruments within my DAW. But I can't find any tutorials or examples of how to do this.
All the VST tutorials and examples I'm seeing seem to be of VSTs as instruments or effects.
Can anyone give me some pointers to where I can find out more about programming a VST that sends MIDI?