You can either create your own MIDI mapping or you can import an already existing mapping file. In order for your controller to interact with the TRAKTOR software interface, you need to add a MIDI mapping (Device) to TRAKTOR's Controller Manager. Note: If you own a TRAKTOR READY controller, the configuration is done automatically via the Setup Wizard and you may skip to this article. This article explains how to set up TRAKTOR for the use of an external MIDI controller.