According to the Da Capo Catologue, BWV 1036 is the first of four Trio
Sonatas, BWV 1036-1039. It is indeed in d minor. However, it is spurious,
along with 1037 & 38. 1036 & 38 are thought to be by CPE Bach and 1037 by
Goldberg. As far as I know, it was not intended to be a variation on A
Musical Offering. Hope it helps
Daryl Loomis
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