A "solo" should keep live the entire path of whatever is soloed all the way to the master. If it's midi it should mute the other midi parts and let that one part play. It makes no sense to me in this context. I sat down (once again) to just "play around" with some midi in Reaper thinking (once again) that I haven't given it a fair shot and I need to look deeper. Every time I do that on the midi side I end up frustrated by really basic things, not even the "shiny" stuff people keep talking about as people call advanced features. This is basic stuff. I'll post a (really noisy) Camstasia video in a moment showing some of my frustrations up close. Particularly how you can't resize midi parts to kill program changes at the beginning of tracks, they just slide along to the right with the resize. ?? Meaning you have to manually edit them all out? Here it is... it's noisy as hell but.. P.S. I zoomed in and looked and it does the same thing with other controllers like volume, pan, effects 91/92 etc. It doesn't size over them it just slides them along while the list editor shows the original position. =============== ??? Do the program changes even show up in the list editor?