Marpurg's Fugue in D major a 3 Voci, taken his "Fughe e Capricci per clavicembalo o per l'organo" is a bit more serious affair than the fugue in A major I published 6 days ago. Though not a joyous as the fugue in a major, it is nevertheless a well written fugue. The theme features a lowered seventh scale and gives rise to an harmonic play between dominant and subdominant in the rest of the fugue.