Pitch shifting

As technologies improved, motor speed and pitch control could be achieved electronically by servo drive system circuits.

A harmonizer is a type of pitch shifter that combines the pitch-shifted signal with the original to create a two or more note harmony.

[6] In the 1970s, reruns of shows like I Love Lucy were sped up in order to run more advertisements during commercial breaks.

[7] South Park creators Trey Parker and Matt Stone have used pitch shifting for most of their characters throughout the show's run.

[8] One notable early practitioner of pitch shifting in music is Chuck Berry, who used the technique to make his voice sound younger.

The band was a duo, who lacked a bassist and had never previously used one in any of their music, choosing instead to mimic the sound of a bass guitar.