What do you consider the most musical speakers—$15000 & under

I just purchased the Vandersteen Quatro CT's (painted) over all the others I auditioned under 30k.  I found them to be the most accurate tonally, had the most detail as they dont' smear and are time and phase accurate.  They are the most musical since they offer the most detail.  The attack and decay are as good as it gets.  I think they are the sweet spot in Vandersteen's line.  The bass EQ let's you put them into the corner of the room up against the wall so the wife loves them too.  With the bass EQ, you can set them up to also max out the soundstage without getting suck out in the middle.  

These are just my suggestions.  The biggest thing you can do it go audition.  All speakers get good reviews, including many best of shows by Vandy's, Magicos, Legacy etc..., but that may not be your best of show.  That's a large chuck of change to spend and maybe a trip to a large city to go listen to a large cross section over a weekend.  Just a thought.

@shadorne the difference between a saxophone and a lawnmower? 
Vibrato. 

There is hi-fi and there is my-fi. I tend to believe that people want a system that sounds good to them.
I've been lucky enough to be in the studio with some great musicians and witnessed recordings first hand.
Unless we are in the studio how do we know what is accurate?
And if the system is truly accurate wouldn't some of these recordings sound like they were playing through Yamaha NS10s?
Everything in the studio gets processed. Snare drums have noise gates to prevent bleed over or the snares buzzing.
I can usually tell if the drummer is using a brass or wood snare or of he is using Paiste or Zildjian cymbals.
The guitarist is another problem, he is running through a pedal board, so how does one know if what we are hearing is accurate?
Usually the musicians don't even know what is accurate they just know if the performance sound right and too many takes kills the vibe.
For me,if I can hear those differences then all is good.

I recently picked up a pair of humble Vandersteen 1ci and they're far more musical than any Harbeth I've heard.

many choices for the above budget. Several great ones already mentioned. Depending on the gear, room etc one can end up with diffrent set-up, inclduing solid state vs. tubes etc and thenmatching speakers will be diffrent. 
Vinatge Altec speakers like the 19, 604 based or Flamenco/Valencia can be great (the latter with legend, Shindo, Air Tight, Trafomatic, Almarro, etc etc gear) or Devore O/93 or O/96 can work really nicely. 
KEF 107 or ADS 1590, Merlin (now out of business), ProAc, Audio Physic Virgo could be awesome for practically nothing with modern or vintage solid state...and then many modern speakers some folks already mentioned. The Vandy Quattro and Treo (perhaps with Vandy subs) is a great choice to my eras for much less than the above budget. Pretty good customer service too. No affiliation with any of these speakers just some experience with 55 or so pairs and many audio friends with diffrent gear and room.