Tremolo

Tremolo (Italian pronunciation: [ˈtrɛːmolo]), or tremolando ([tremoˈlando]), is a trembling effect. There are multiple types of tremolo: a rapid repetition of a note, an alternation between two different notes, or a variation in volume. Tremolo is sometimes used interchangeably with vibrato, which is a variation of volume (pitch or frequency) Some electric guitars use a lever branded "tremolo arm" that allows a performer to lower the arm or "whammy bar" to create a tremolo effect. The word tremolo can also be used to refer to a vocal technique involving a wide or slow vibrato. It can also refer to an unmeasured tremolo, such as on a harp, or to a special case of the trill, a trill between two notes separated by the interval of a major or minor second (whole- or half step) The tremolo is not to be confused with the word "pitch bend" which refers to the non-standard pitch or vibrato effect of a chord.