I understand what you say in terms that you can do anything, that's why I asked for some specific applications to better direct my own research, it's always good to know what has been previously done, you know, standing on the shoulders of giants (or something like that, i'm not native english speaker
Your first example was midi real time modification/generation. The path would be external controller->max->live, right? How do you achieve that routing on Windows PC? I guess in mac virtual midi connections are like built in...
And when it comes to audio, what do you do? Do you create instruments and then play with them? How do you integrate the audio stuff with live? (I mean, is it rewire compatible or such? how does the audio stream goes in/out max<->live?).
What other applications are you finding max good for? What crazy ideas have you had with it (like the evil tempos you mentioned, sounds mad!).
And how do you compare max with bidule? have you used bidule?