FLStudio so I can play the C1 octave on the lower keys and the C4 octave on the higher keys. I'm looking to control a single plugin, so I don't think a layer is the answer here ...
FLstudio if it's a big file.
I noticed there is a color difference in the notes that have no sound - they are a little bit brighter green than the usual green ones and when I replace them manually ...