So i fiddled around with this and it works like a charm ! I did set it up like this: 1) Instrument track with a piano vst on it. In the fx chain, before the piano plugin, i put midi vocoder. On this track, i have a midi item with a chord progression. 2) A second track, routed to instrument track, audio send disabled and midi routing set to all midi channels > midi channel 2. On this track, a midi item with a note pattern in it. 3) Go in play and you can hear the chords being triggered by the note pattern, great stuff ! Only thing i am trying to do next is recording the outputted rhythmic chord pattern as midi, but no luck: When you set "record output > midi" on the instrument track, it will not record the outputted rhythmic chord pattern.