Originally published as an open score with unspecified instrumentation.
"[The performer has] arranged the [order] ... to emphasize contrast, drama and movement towards the final unfinished quadruple fugue ... [he has] omitted the mirror fugues and one of the canons ... the chorale [BWV 668], 'Vor deinen Thron tret' ich hiermit,' (more commonly known as 'Wenn wir in höchsten Nöten sein') is included as a plagal benediction ..."--from he notes to the analog issue.
Compact disc.
Previusly issued on analog discs: Afka SK-300--SK-301.
"The original 30 ips tape recording was made in first takes, played straight through, in one evening"--Insert.