[Zubersoft]

It's an interesting idea, but it changes the icon quite a bit if there is no inner circle color and only a white circle around the outside. The treble clef symbol would have to shrink in size to accomodate a thicker circle with a small amount of shadow (like the one you showed). I like the look of the icon a lot less with the tests I've run so far.  If I don't have a circle of color at all, it looks MUCH worse in my opinion. With a circle, it also looks worse (and like an entirely different icon) because there isn't the long shadow to add any variation or depth. 

I probably shouldn't spend much more effort on this as there are a lot more important things for me to focus my time on.

Thanks,
Mike