This may be a strange question, but I have a chord sequence that "works" (i.e., it's what I hear in my head) but I want to understand *why* it works, and I'm realizing I have kind of a hole in my theory knowledge about diminished (seventh) chords. I'll post the whole sequence here, but it's specially the F#o7 I'm wondering about.
(one measure per chord)
C B7 E7 E7
Am E7 Am Am
F F#o7 C A7
D7 G7 C G7
Where F#o7 = F# A C D# (and any of those notes could be heard as the root).
So the question is, why does it work? I know the general answer is "voice leading," but I'm looking for a more specific sense of how that F - F#o7 - C sequence works. It feels like a kind of Tin Pan Alley progression--how did the classic songwriters use diminished chords? Looking at @nancyrost, @izaak, and other theory-smart people. Thanks!