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'''Tremolo''' is a musical [[technique]] used on various instruments, which calls for rapid repetition of a single note or [[chord (music)|chord]] in order to create a sense of agitation. It is produced in very different ways on different instruments.

'''Tremolo''' is a musical [[technique (music)|technique]] used on various instruments, which calls for rapid repetition of a single [[note (music)|note]] or [[chord (music)|chord]] in order to create a sense of agitation. It is produced in very different ways on different instruments.

On string instruments such as the [[violin]], the performer moves the tip of the bow rapidly back and forth over the string, while a single note is held on the fingerboard. While not often used in solo violin literature, it is a ubiquitous effect in symphony [[orchestra]]s, especially in [[opera]].

On string instruments such as the [[violin]], the performer moves the tip of the bow rapidly back and forth over the string, while a single note is held on the fingerboard. While not often used in solo violin literature, it is a ubiquitous effect in symphony [[orchestra]]s, especially in [[opera]].