How do you get the subdominant counter-chord of F-sharp major?

Good day,

This chord is supposed to be the subdominant antiphonal of F-sharp major. But I wonder how that could even be, since the subdominant in this case is B major, and its antiphonal would therefore be E-flat minor, right?

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selbrgschraubt
1 year ago

If the location is in A major, then the F#7 visual sound shown would already be correctly analyzed (green marked) as an intermediate dominant to the 2nd stage (Hm).

c7sus4
1 year ago
Reply to  Alexldr

If A Dur is the tonic, the Subdominant D major. The moll sound of a dur-three sound is a great terz higher, so fis-moll is the counter sound of D major. When the terz is increased, we get the digested subdominant-genklang Fis-Dur. In addition, however, a small sepitime (dominantseptim) is contained in the chord, which is why the interpretation as an intermediate dominant to the subdominant parallals h-moll (small terz deeper than D major) is the only correct one.

selbrgschraubt
1 year ago
Reply to  Alexldr

Part 1: see Wikipedia.

Part 2: No. The subdominant counter sound of Fis major would be D#m. But we’re not in Fis major anyway.

selbrgschraubt
1 year ago
Reply to  selbrgschraubt

Addendum: Yes we are in A major as suspected is the A major Prelude of Chopin, almost overlooked 🙂

selbrgschraubt
1 year ago

No. As mentioned, F#7 is the intermediate dome to the 2nd stage.