Problem recording from MainStage 2

Suggestion 

Making Progress 

Found It! 

Second Problem Now - Latency 

You may need to take another route 

Use logic to record, the patch you have in Mainstage will work in Logic. or, do a patch on your sound card. I have RME and that will work with two app open at the same time. connect an output on your sound card to an input and it will work. this requires that the drivers for the sound card can handle this e.g. app (can use it at the same time) or get another guitar plugin (eg Waves GTR) that will also work in Reaper. and do the recording there.

Latency Solved 

It turns out that there is a check box in front of the sample rate input. Even though a different sample rate is specified, it defaults to 44.1K unless that box is checked. So, MS2 was outputting 48K and REAPER was resampling it at 44.1K (thus the 8.8% pitch shift that went along with it.) MIDI_Keyboard --> MS2 --> Soundflower --> REAPER --> Built-In Output That works great. With the sample rates ACTUALLY the same now, it all works smoothly with no additional latency. I'm recording music now instead of pounding my head on the wall. <g>