Thank you, Mare. Unfortunately I have two main issues with #5 - the up & down letters speak "playful" to me rather than strong & self-assured. And the roundness of the o's is in contrast to the actual shape of musical noteheads, in such a way that looks like they were conceived by a non-musician. I'm open to a logo that integrates musical graphical elements, but I'm not expecting it because I think it is extremely difficult to use them well - most often to me they wind up conveying a very cheesy quality. Partially because musical typesetting (of notes, etc.) is a skill that most designers do not have.