Moravian Duets, a popular composition that was originally intended for home music-making, won young Dvorak a scholarship and relieved him of financial worries; after the composition was published by Simrock, it also launched Dvorak's international career.

Shortly after their publication, Janacek arranged six duets from Op. 29 and Op. 32 for four-partmixed choir using Dvorak's piano accompaniment. Janacek thus extended the choral repertoire by adding six highly rewarding pieces which are inclu...