the MIDI volume (and panning) slider on MIDI track mixer strips act specifically as dedicated MIDI channel controllers CC#7 for volume (and CC#10 for panning), so their effect actually depend on the receiving MIDI instrument or plugin implementation.
that said, it all depends whether Calf Monosynth or Calf Organ recognizes and reacts itself to each of the MIDI channel controllers just mentioned (CC#7 or CC#10).
i can't confirm it atm. but not all MIDI instruments or plugins have that controller mapping set by design or default, so that you won't see any response or effect while changing the volume sliders on the MIDI track / channel they're inserted into.
the MIDI volume (and panning) slider on MIDI track mixer strips act specifically as dedicated MIDI channel controllers CC#7 for volume (and CC#10 for panning), so their effect actually depend on the receiving MIDI instrument or plugin implementation.
that said, it all depends whether Calf Monosynth or Calf Organ recognizes and reacts itself to each of the MIDI channel controllers just mentioned (CC#7 or CC#10).
i can't confirm it atm. but not all MIDI instruments or plugins have that controller mapping set by design or default, so that you won't see any response or effect while changing the volume sliders on the MIDI track / channel they're inserted into.
hth.
cheers