Vibrato is a musical technique used by singers and instrumentalists to create a slight, rapid variation in pitch. This effect adds warmth and expressiveness to the sound, making it more engaging for listeners. Vibrato is typically produced by oscillating the pitch of a note slightly above and below its intended frequency, usually at a rate of 5 to 7 oscillations per second. In vocal music, vibrato is often a natural part of a singer's technique, while in instruments like the violin or guitar, it can be achieved through specific finger or bowing techniques. Proper use of vibrato enhances musical performance and can convey emotion effectively.