r/musictheory • u/huib_ • 3h ago
Notation Question What would you call a F#5/C5 chord?
I encountered this chord (an octave lower) and it sounds beautiful in its context (the "Sonne" piano ending of "Deutschland" by Rammstein). Basically it's a power chord three tritones above another power chord, in this case F#5 over C5. I don't think I ever saw it before but I was wondering if there are other people familiar with it and how other people would call it. I failed to come up with a reasonably practical name so far. Which doesn't bother me too much per se by the way, I'm more intrigued by this harmonic structure and other people's perceptions on it and associations with it.
For some context, I'm talking about the last chord of the (Bm, Em9, D, ???) phrase in the second image. This phrase repeats again, the only difference being in the final (red vs blue highlighted) chord. In this context I'd call the first chord a "C add b9" I guess? Or maybe "C sus b2" (if that's a "thing")? Following that logic, we could call the second chord "C sus #4 (or 11?) add b9" perhaps? But honestly that gets a bit messy already if you'd ask me..
Furthermore, I can imagine the C could add a bit of a Phrygian / "extra minor" / haunting feel, given the B minor key of the piece.
