Calling all Traktor DJs, new update here from Native Instruments. This first phase of Connect and Sync allowed you to seamlessly syncs track meta data from Traktor Pro to Traktor DJ and back including all BPM, beat grid and cue point information. The latest Traktor update (2.6.1) not only allows you to use the tracks you prepared on your iPad, but they've also added an advanced Key Detection that allows you to see which songs match the key of your current track. Mixing on beat, but out of key is a common mistake... get the key right and you've got super-smooth mixes for days. For more info about mixing in key, check this article out.