A Dictionary of Music and Musicians/Tempo Rubato
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TEMPO RUBATO (Ital., literally robbed or stolen time). This expression is used in two different senses; first, to denote the insertion of a short passage in duple time into a movement the prevailing rhythm of which is triple, or vice versa, the change being effected without altering the time-signature, by means of false accents, or accents falling on other than the ordinary places in the bar. Thus the rhythm of the following example is distinctly that of two in a bar, although the whole movement is 3-4 time.
Schumann, Novellette, Op. 21, No. 4.
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