In hip hop, since the beginning of MCing, there have been producers who work in the studio, behind the scenes, to create the beats for MCs to rap over. Producers may find a beat they like on an old funk, soul, or disco record. They then isolate the beat and turn it into a loop. Alternatively, producers may create a beat with a drum machine or by hiring a drumkit percussionist to play acoustic drums. The producer could even mix and layer different methods, such as combining a sampled disco drum break with a drum machine track and some live, newly recorded percussion parts or a live electric bass player. A beat created by a hip hop producer may include other parts besides a drum beat, such as a sampled bassline from a funk or disco song, dialogue from a spoken word record or movie, or rhythmic "scratching" and "punches" done by a turntablist or DJ.