The "activating devices" issue is an important factor and the reason I would chose using both Bidule and Mainstage as live looping host before Ableton Live. In both these hosts two you may have tons of effects cabled up in numerous alternative signal paths to switch between during your concert, and all those alternative devices are taken off the CPU load when not in use. Since I like to have a huge palette of alternative effect chains this makes it an easy choice. Live can't compete in this regard, but if you are not planning to use a lot of sound patch live switching Live may be even more CPU friendly for the few devices you chose to stick with, at least the latest version. To continue the comparison, if intending to play with a lot of instant switching between several alternative effect chains another important factor is how your software takes care of preserving sounding tails from the previous patch, when switching to a new patch. My experience is that Bidule is just outstanding in this department. Given you use a custom made Group that actively listens to the old patch and keeps it open until the level has diminished under a specified threshold level. Mainstage has a more rigid version of this; you can only set the number of seconds to keep the previous signal path open when switching to a new patch. When the specified time has passed it just closes by brutal force. Can sound rather rude in a delicate musical situation. One thing that Live does well is to play back pre prepared audio files. But you need to be careful not to warp them ("warping" is what Ableton calls it when audio is time-stretched for a tempo change) because that changes the fidelity a lot. I will use Live for a concert in January where eight surround channels will run pre prepared and two musicians playing along in real-time. When I did this back in March I used Logic. Logic is even more biased towards composition and studio recording production, but you may use its Performances to set up maximum 128 alternative Channel Strips, each one containing many insert effects. To call up a new Performance you send in a MIDI Program Change event into the computer. I have been using that system for a year in a dual laptop setup where Logic 7 were slave sync following another laptop running the Mobius looper as the tempo master. MIDI Clock was used for sync but from Logic 8 this synchronization system has been abandoned. I have also tried to use Mainstage file player (called "Playback") for playing back eight long files for octaphonia, but this crashed the application (hence the earlier decision to use Logic) The above findings are stuff that would have saved me a lot of research time if someone had told me, so I hope it may help someone else to find a useful solution with minimal hassle. Greetings from Sweden Per Boysen www.perboysen.com http://www.youtube.com/perboysen On Thu, Nov 24, 2011 at 5:59 PM, Philip Conway <Philip.Conway@bristol.ac.uk> wrote: > 1. Looper doesn't crossfade at loop end/start so it's very difficult to > prevent clicks (impossible if you're playing something continuous like > ebowed guitar or whatnot). > 2. Activating the device causes pops, clicks and other weirdness. I've > not > noticed sync issues but I'm prepared to believe it!