Complex sentence: The accompaniment in each lower voice is constructed from its own separate motifs, each having its own characteristic rhythm though the longer figures in the two lowest voices are heard several times throughout the piece, Bach's ingenious writing gives no sense of artifice or mechanical repetition.
Split into simpler sentences: The accompaniment in each lower voice is constructed from its own separate motifs, each having its own characteristic rhythm. Although the longer figures in the two lowest voices are heard several times throughout the piece, Bach's ingenious writing gives no sense of artifice or mechanical repetition.