This means that the amount of the piano signal you send to the monitor will be unaffected by any changes you make to the main output level. Click on the send slot you've just created and select 'pre'. With two open concerts, closing one, and then switching to the second no longer stops MIDI and audio from passing to and from the remaining concert. You might read the thread here about the new iPad CPU spikes with just a few apps which is the worst case in a live set-up (but that might be solved already with the coming. Now, go back to the original piano channel. MainStage now immediately recognizes aggregate devices created in Audio MIDI Setup while MainStage is running.
But macOS is a lot more stable and powerful if you running a lot tools and want to switch applications while live usage.
APPLE MAINSTAGE LIVE SETUP FOR MAC OS
Perform live with 100 instrument, effect and MIDI plug-ins or work with Audio Units plug-ins. I wouldnt trust both in a live set-up these days. Download Apple MainStage 3.2 for Mac Free, Music composition and mixing app for Mac, Latest MainStage 3.2 for Mac OS X, Create high quality sound effects on live performances, Create professional.
MainStage lets you take your Mac to the stage with a full-screen interface optimised for live performance, flexible hardware control and a massive collection of plug-ins and sounds that are fully compatible with Logic Pro. MainStage lets you take your Mac to the stage with a full-screen interface optimised for live performance, flexible hardware control and a massive collection of plug-ins and sounds that are fully compatible with Logic Pro.