You can learn scratching with DJ controller through these four basic techniques:  1. You need to use your dominant hand on the crossfader and other hand on the jog wheel.  2. Make sure your crossfader setting is turned to scratch (Go to your preference settings, then Mixer and then set Crossfader curve all the way up). This will ensure your scratches sound tighter and easy movement.  3. Start with baby scratch: It is the foundation and doesn’t require crossfader, just rhythmic movements going along the jog wheel back and forth. 4. Next try the Scribble Scratch: It is similar to baby scratch, you just move the record faster, double or triple time.  5. The Drag Scratch: You now need to open the fader at the start of the sound cue. Move the sound back and forth from 9 o’clock to 12 o’clock position.  6. If you master these foundation scratches, you can easily catch-up with more progressive scratching