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How to Use Chorus Pedals in Guitar Playing With Tom Morello

Written by the MasterClass staff

Last updated: Aug 9, 2021 • 4 min read

In the early days of the electric guitar, there was only one way to affect its sound: turn up the volume on the amplifier until it started distorting. Later, amplifiers added effects like EQ, reverb, and tremolo—the latter of which is sometimes incorrectly labeled as “vibrato.”

True vibrato involves slightly changing the pitch of a sounded note. This was best captured using rotating speakers, like those manufactured by the Leslie corporation. Out of the vibrato effect came the chorus effect.