I want to perform my tracks live is all... but be able to improvise within the track... say, be able to play the kick and snare when I want... run filters everywhere... effects.... play just a guitar part... reintroduce parts slowly, etc, etc.... I just have no idea where to start....
The tracks are all done and ready, don't know how to transfer that into a live show though!
This is how I work on my live sets most times.
Figure out how many tracks (channels) I want to work with. Am I going to be using an external instrument (usually yes) to replace/add parts or sounds to existing compositions? Am I going to trigger drums or other sound effects live? Usually I end up with a live set that is 8 or 9 channels, 5 of them are bounced down audio stems of the main elements from existing songs. Other 3 or 4 channels are dedicated to a drum rack, external synth or vst, miscellaneous sound fx/vocals.
Then I start exporting rendered audio set to "all tracks" of existing songs, open up a new Ableton session, throw those stems in, group whatever channels I see fit (grouping drums, rhythm synth with pads, fx sends to appropriate audio tracks) then export that again. BTW I usually leave out some of the send fx for reverb and delay and just tailor that live. sometimes you don't need a big ass reverb on your snare live. (i do some 80's style stuff) Labeling all of your channels through the process is very key here, otherwise you have a way to many files labeled 1-audio, 13-audio, 1-audio...
After I have all of the songs bounced down that I want to perform, I load the stems into my live template on arrange page. One stem on each track, chop the song into however many sections and set my loop brakets, then throw those clips into session page, delete everything from arrange page and do the same thing for the next song.
Next I put in an external synth or a vst and figure out what parts will be midi and which parts will be played live. Figure out if there will be patch changes or if it will just be a tweaked sound throughout the set.
My channel fx are usually always the same, I have a rack I've built with some of abletons effects, tracktor's 12, and some other bits all mapped up in a rack that is duplicated for most tracks. The master fx rack has other fx in it but is the same for all of my live sets usually.
It's such a mess though and you will most likely want to dropkick your laptop out the window when something fucks up. oh yes, something most definitely will. There are so many ways to go about it and probably better ways than mine, but whatev's.
Honestly if you make a quick dj template of your tracks and do that you will probably get a better idea of how you'd like to perform live.