Editing Vibrato (section)

===Auto-vibrato===
[[File:Malekko Omicron Vibrato - Stomp Romp Snack Demos 3.ogg|thumb|A vibrato [[Effects unit|effect pedal]], played on [[electric guitar]].]]
Some instruments can be played only with constant, mechanical vibrato (or none at all). This effect is notable in electric organists using a [[Leslie speaker]], the most popular of which use a two-speed vibrato; a degree of expression is gained from the acceleration between speeds. Vibrato on the [[theremin]], which is a continuously variable-pitch instrument with no "stops", can range from delicate to extravagant, and often serves to mask the small pitch adjustments that instrument requires.

Some manufacturers also build vibrato [[Effects unit|effect pedals]] that imitate the natural vibrato but can also produce much faster speeds. The vibrato effect is close to a [[chorus effect]].