33 RPM This brings back a bit of the past, but without the scratches. In the past, musicians would adjust the speed of their record players to learn a piece of music and then practice the slower version.
33 RPM is a great tool for transcribe music. It uses QuickTime to make it easy to speed up, slow down, or loop your media without changing the pitch. 33 RPM has independent controls that allow you to change the pitch and speed of audio, perfect for those chipmunk voices.