I'm working on the logo & wordmark for a company that will be based online (it's a music service) and aimed at Churches, primarily older and smaller high-churches, like Presbyterian, Episcopalian, Lutheran, etc.
Currently I'm using Proxima Nova or Gotham in the mockups (anyone want to weigh in on why I should pick one over the other?), set in all-caps, but I'd like to see something that looks a tiny bit more traditional. I'm thinking some slight serifs or something. Normally I'd try to solve this with a slab serif like Adele or PMN Caecilia, but it ends up looking too tough, and most serifs just look too boring to be used for an online music service.