If you’d told me not so long ago that I could have a touch screen device in my pocket quick enough to allow me to manipulate audio by scratching with a virtual turntable, I’d have told you to get out ...

Developed in the late '70s by hip-hop DJs Grand Wizard Theodore, Kool Herc et al, scratching is undoubtedly the most iconic use of a pair of turntables. The basic premise is to create a rhythmic sound ...