The pitch control mechanism on either a Turntable or CD Deck changes the pitch of the music playing back. The range on different devices can be 8% (the standard for Technics SL1200 or as much as 100% (on many CD decks such as the industrial standard CDJ-1000s). Vestax Turntables are famous for having a high pitch control range, as much as 60% on the QFO.