"Scratching" is also a present participle of "scratch", and may also refer to a form of street art

Scratching (or "skratching") is a DJ or turntablist technique used to produce a distinctive rhythmic sounds by moving a vinyl record back and forth on a turntable while manipulating the crossfader on a DJ mixer. While scratching is most commonly associated with hip hop music, since the 1990s, it has been used in some styles of pop and nu-metal. Within hip hop culture, scratching is one of the measures of a DJ's skills, and there are many scratching competitions. In recorded hip-hop songs, scratched hooks often use portions of different rap songs.