Update -- We're noticing a lot of bright/light blue- which looks nice! BUT doesn't necessarily fit with the color scheme of our site. If you check out http://thecovr.com, it's mostly made up of that dark blue, gray, salmon/pink, and some black.
These are our current logos, which is close to what we want - a simple sharp logo. You can also check out our website TheCovr.com to see where our logo would fit in the header etc. Make sure not to clash with the existing color palette and if possible, keep in neutral colors so that if we ever decide to change the color scheme of our site in the future, we can still use the logo (NOT Required though-if it looks good, it looks good).
Items that come to mind for "cover": microphone, microphone stand, musical notes, person singing, person's face singing, fan on stage. It should be simple, clever, but easy to read/understand the message of the site.
Logos we liked:
http://vandelaydesign.com/blog/gall…sic-logos/ - "Songcake"
http://www.logomoose.com/ - "BrandLove"
http://lava360.com/60-creative-musi - "Auditorium, Music Stats"
http://logopond.com/gallery/detail/188570 - "Polargram"
http://logopond.com/gallery/detail/189549 - "Reverb"