a. one MIDI track always maps to one MIDI channel (one of 16) and each with its own plugin chain (1:1);
b. one or more MIDI tracks may converge to a (same) MIDI output bus which then merges all tracks channels (N:1) into its plugin chain;
in any case you can have more than one instrument plugin, and it's probably exactly what you might be asking for; however that will only work iif the plugins features audio pass-through and mix-down iow. they accept audio input from a predecessor and mixes the generated signal into output and so on...
not all instrument plugins present this needed requisite (oh yes, any of the vee-ones do, you're lucky:) so, if not, then you ought to resort to something like Carla or else to the rescue :)
i don't think I understand you question
a. one MIDI track always maps to one MIDI channel (one of 16) and each with its own plugin chain (1:1);
b. one or more MIDI tracks may converge to a (same) MIDI output bus which then merges all tracks channels (N:1) into its plugin chain;
in any case you can have more than one instrument plugin, and it's probably exactly what you might be asking for; however that will only work iif the plugins features audio pass-through and mix-down iow. they accept audio input from a predecessor and mixes the generated signal into output and so on...
not all instrument plugins present this needed requisite (oh yes, any of the vee-ones do, you're lucky:) so, if not, then you ought to resort to something like Carla or else to the rescue :)
hth.
cheers