Maurice Ravel is perhaps known best for his orchestral work 'Bolero' (1928), which he considered trivial and once described as "a piece for orchestra without music". Bolero is a one-movement orchestral piece originally composed as a ballet commissioned by Russian ballerina Ida Rubinstein. For 'Bolero' he used the opportunity to conduct an experiment. As he put it, the score would be "uniform throughout in its melody, harmony and rhythm, the latter being tapped out continuously on the drum. The o...