source - forgotten :D



Baby Scratch 
The most basic scratch in a turntablist's arsenal.
A baby scratch is pushing and pulling the record back and forth with the beat. 
It can be slow or fast. If you go slow it might be mistaken for a drag scratch, 
but as you get faster it can easily turn into a scribble scratch.


Forward Scratch
Forward scratches are best described by letting part of the sound play and then 
cutting the sound at the desired point. Then backspinning the record and 
cutting the sound back in. Use different cut points to add variety to the mix. 
Try experimenting with going backwards as well. If you start to cut the sound 
shorter and shorter it would be considered a chop scratch.

Using the word scratch might work like this:
scratch, skrat, skra, skr, sk, sk, sk, sk and so on.

After getting super fast with your cuts, the scratch would probably be described 
as a stab, since it's faster then a chop.


Chirp scratch
Chirps are created by cutting the sound in and out, trying to catch just a snippet 
of the beginning or end of the sound. Think of Anthony Hopkins in Silence of the Lambs, 
when he makes that unique sound with his lips while talking to Clarise in the prison. 
It makes kind of a negative sound or a backwards vacuum or sucking sound.


Tear scratch
Tears are done by moving the record forward or backward to the rhythm pausing the sound 
in the center and continuing to either pull back or push forward. Basically, pull the 
sound part of the way, pause quickly, then continuing to pull the same sample backwards. 
You can perform this forward or backward.