Not sure about (b) — think of the Barenaked Ladies, who are neither but still get gigs.

Nick Barraclough's first band had a name I liked very much — Telephone Bill and the Smooth Operators.

From what you say, Hamish, the word Smooth somewhere in the name would suit your would-be profile. Combining it with a previous suggestion of mine, first on the thread I think, [which i hope btw you are still considering], would something like Smoothglow (or Smooth Glow) have any appeal to you?