chorus

Chorus is a modulation effect that splits the guitar signal into a dry and a duplicated wet signal, then slightly detunes and delays the wet copy before blending it back with the original¹². Delay times are typically in the 20 to 50 millisecond range, longer than a flanger's, which gives the effect a bigger sound³². The result can range from subtle thickening of a tone to a glassy, sharp roar, and is often used to shape or widen a stereo image⁴⁵. In a rig, chorus is most commonly placed after overdrive and distortion pedals but before time-based effects such as delay and reverb⁶. Chorus pedals have been a bass staple since the 1970s, when they gained popularity among fusion and prog-rock players⁷.