Native Instruments seem to be keen to keep the momentum going with their Traktor Pro DJ software, after a long period of hibernation. In the new version 4, they finally bring variable beat grids to the app for the first time, and they’ve upgraded their existing stems infrastructure to introduce in-app stem analysis – and there’s plenty more to talk about, too. Mojaxx gives it a first look on the new episode of Beatsource Tech, over on YouTube now.