Diavo is the kind of quirky I'd like, but the "devil" feel is a problem (especially in the "y").
Here's an example of a serif font that was made more minimalist for a neat logo
http://www.davidairey.com/berthier-logo-design-process/I don't think we'd want something so heavy ("eMusicTheory" is a much longer name) but I'm curious to see if that kind of style could work.
I've been digging around for other fonts, but not sure where to look, really; I'm trying for something that is still clear and clean, but hints at the style of the logo.