You will need a good knowledge of Ableton and Reaper’s routing and Mac’s internal IAC midi setup.
If you run Ableton Live as a rewire slave you can only route the audio to Reaper.
Could I use Ableton to trigger midi notes in Reaper when it is slaved?
The answer is yes but only using the IAC midi driver in MAC – there maybe a way to use RTPmidi in windows to do this but I don’t currently have Ableton installed on my windows pc to test this.
So let’s get the idea out there.
Can Ableton as a rewired slave be used as a Piano Roll Editor?
Yes it can – using rewire as the syncing mechanism we can use IAC as the midi input.
Reaper -> Rewire Ableton
Ableton ->IAC bus -> Reaper
On Reaper you will need:
- A track with Ableton rewired.
- A Track with the instrument you want to trigger. This will need to be armed with monitoring. Right click record button and choose midi – IAC bus
On Ableton you will need:
- A midi track with it’s output to the IAC bus
Hopefully if you add some notes to the midi track in Ableton you should hear them back on Reaper’s Instrument Track.