Vibrato

Adding periodic variations in pitch makes long notes sound better and have more sustain.

Classical

In classical vibrato technique, the hand moves back and forth parallel to the strings. Classical vibrato is less effective on fretted instruments like the guitar than on violins.

Hand Vibrato

The most common form of guitar vibrato uses hand movements to bend and release the strings slightly. Some players press the side of the first finger against the fretboard as a pivot for the hand.

Arm Vibrato

A more aggressive form of vibrato holds the wrist lock and moves the whole arm back and forth quickly.

Tremolo Bar

Slight variations on the tremolo bar produces a smooth vibrato. A floating tremolo bar can produce vibrato the moves above and below the pitch, unlike hand vibrato which just bends upwards.

Neck Vibrato

Placing the right hand on the headstock and moving the neck back and forth produces a vibrato effect that works on chords also. Be careful not to be too aggressive and damage the guitar.

Effects

Effects pedals produce a vibrato effect as well as other similar effects like tremolo, phase shifting, flange, and chorus.