Do i have to have a midi module or is that optional
Do i have to have a midi module or is that optional
Depends on what you want to do.
But definitely optional (to answer the question).
i want it as a backup mainly sequencing and psy trance i have other synths to do lead with so the modular can go automatically
How are you sequencing your other stuff? If your setup has a clock/sync output or CV/Gate outputs, this may be enough to just run them side by side.
Right now I'm only planning haven't started yet but you made things simple when you mentioned that but right now I'm using the Novation circuit mono for sequencing