TraktorDJ iPad Controller for Liine Lemur
TraktorDJ is a tablet control surface for one of the most popular / longstanding digital DJ platforms, Traktor by Native Instruments. The controller is built using the Liine Lemur toolkit and uses the Lemur Daemon software running on the computer hosting Traktor to manage communication with your touchscreen device.

Main Controls Tab
In terms of DJ mixing functionality, TraktorDJ is designed for 2 deck mixing and provides:
- Gain dials / large volume faders – gain dials have kill and reset buttons
- Hi / Mid / Lo EQ dials with kill and reset buttons
- Filter dials with filter FX selection and reset buttons
- Tempo nudge forward / back buttons
- FX in / out buttons
- Loop on / off and Loop Length buttons
- Master Tempo + / –
- Play / Cue buttons

Music Library Navigation
In addition to mixing functionality, Traktor DJ has a screen for navigating your music library, adding tracks to your preparation playlist folder and, of course, loading tracks to the decks ready to play.
Folder navigator section:
- Up / down buttons to move through hard drives and folders one by one
- A scroll bar to quickly move through hard drives / folders
- Buttons to expand / collapse a selected drive / folder to start or finish accessing its contents
- A ‘jump2prep’ button to quickly jump to your preparation playlist
Track navigator section:
- Up / down buttons to move through tracks one by one
- A scroll bar to quickly move through tracks
- Buttons to load a selected track to deck A or B
- A button to add a selected track to your preparation playlist