Dvořák's "Slavonic Dances" were originally composed as piano pieces for four hands, but were later arranged for orchestra by the composer himself.
ドヴォルザークの『スラヴ舞曲集』はもともとピアノ連弾曲として作られたが、後に作曲者自身の手で管弦楽用にも編曲された。