All the HD systems approach this stuff differently. While I tend to go for a track being a track (as opposed to a region being a region or section or whatever), I do like the idea of such things as multiple UNDOs and virtual tracks. Does Radar have virtual tracks so that you can compose a track together from multiple takes? Is track/channel 21 (just to pick a number) always track/channel 21 or can it be re-routed coming in or out? In other words, does physical input 21, after recorded, have to play back through physical output 21? I know that Radar 24 isn't a DAW per se, and that's fine. I don't like the idea of tracking that way, and I don't really think I like the idea of mixing that way either. I like the DAW for tweaks and fixes and adding embellishments that might not happen another way. At heart, though, I still think in terms of analog multi-tracks.