Ableton Forum

I have a question - do all parameters which you map from MIDI controller to Ableton or Traktor for example, get reset once you unplug MIDI controllers from a laptop and plug again before live performance?

The short answer is no.

But, Live and Traktor each handle midi mapping in unique ways.

In Traktor you map in the settings and it applies consistently every time you do a set.

In Live you can map parameters and then 'save as default set' so that every time you begin a new set those mappings are there. If you have any sets created before you've done that, they will only have mappings from when they were made. Any mappings you do in any individual project will load and apply to that project every time it is opened.

As for controllers, you can activate or deactivate mappings of a controller sometimes by fiddling with the 'Remote' setting in Preferences. So it also depends on the controller you use and whether or not that controller is loaded to the appropriate settings.

OK so as far as I understand (for both ABleton and Traktor), I can map all the parameters at home, then close the DAWs, come to a club, plug my controllers back again and if I start a new set (let's say I didn't prepare any stems at home), the midi parameters will still be there?

This depends on if you saved the mappings as the 'default' set or template. The default is basically 'these are all the things I want in my set whenever I open a fresh, blank one'. This includes midi mappings.

You'd open a blank set. Leave it blank and only add or remove things you want to always always exist every time you start a set.

Additionally, the question you ask is sort of troubling.

If you are going out and doing things you need to be practicing doing those things at home. Practice set up, practice connecting your gear. You never know what could go wrong in the moment so it is best to be very familiar with the process of set up and tear down. This includes the process of doing as you described and expecting things to be mapped. You should ideally have tried it and experimented with it. If you have any problems or need troubleshooting, that's a good time to ask for additional, detailed, advice.