The pieces that do not fall into any of the three types are the keyboard chorale partita Auf meinen lieben Gott, BuxWV 179, which, quite unusually for its time, is simultaneously a secular suite of dances and a sacred set of variations with a funerary theme; and the ones based on the chant (Magnificats BuxWV 203–5 and Te Deum laudamus, BuxWV 218), which are structurally similar to chorale fantasias.
