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

Let me add to the debate of musicality Vs accuracy. We may not agree whether the speakers are Musical or not, but we will agree on whether the speakers are Accurate or not - assuming our testing methodology is agreed in advance. This is because musicality is quite subjective while Accuracy is objectively measured.

Hear me out, when I listen to some music, I may find the speakers musical without knowing it's technical parameters. It may very well happen that one may like the Phantom of Opera on  Klipsch or B&W but on a Vandersteen one may find it boring (I do). Mind you, Vandersteen are regarded as one of the most accurate speakers - so when I find something musical, it's  not necessarily about it's technical accuracies but the sound signature that appeals to me. It's also true that in order to provide a better musicality - "Presence" as I like to call it- it's necessary that a speaker should exhibit high technical accuracies. What I mean is that high Accuracy is a Necessary condition for sound to be musical, but it's Not a Sufficient condition for the sound to be musical. So, in essence, Musicality and Accuracy are different. 

Holt got it right.

Thiel speakers tend to be analytical and bright with most SS amplifiers.

If you want them to really sing try Class A tube amplification with 1950s NOS preamp tubes.

Otherwise if you want a very musicaly engaging speaker look at Odeon speakers.

Two brands that I have a lot of experience with and find musical (meaning I can listen for a long time without fatigue) and accurate (revealing detail) are Rockport and Aerial.

Both strike an excellent balance of detail and musicality to my ears.