Given amount of training you have in tango and your understanding of it
To be clear: I'm only in my 10th year of tango. While I've never stopped at least weekly coaching sessions, and while I used to work part-time at a studio where I got a lot of "free stuff" and pinch-hit as teaching staff, I am
not an expert. My understanding is very limited. I apologize if I write as if I think I know more. I'm just another guy!
That said, I can answer your question as "just another guy":
I am curious what you are doing to improve the musicality or musical emotions in your dancing further. What are the methods you employ. In what way does coach help you, that you won’t be able to do yourself. Is coach more for validation and evaluation?
What we do is look at how to match posture (especially level and knee flexion), embrace (notably axis-sharing, and roundness vs. spikiness), and choice
and execution (size, speed, etc.) of vocabulary to the music. We often do so in conjunction with an analysis of professional couples, some favorite match-ups being Espinoza & Hurtado, Galdi & Tarantino, Moreno & Codega, and Nadtochi & Kalganova . . . but really, almost anyone at a level where you don't see many mistakes. We look at how they stand, hug, and move to different pieces, and separate "yeah, that feels right" from "that isn't the choice I'd make." Then we try to make better choices.
Our current project is bringing a round embrace and circular vocabulary to Biagi, whose choppiness tends to bring out spikiness (Erdemsel's "Kiki") in most dancers, including pros. This rarely gets technical unless our technique needs revision to make the interpretation work better, which it hasn't lately. (Okay, I did get a mini-workshop on right arm activation to accelerate turns.)
I don't think our coach is there for validation at all; she won't take money to heap praise on people, which falls outside her personal values. To an extent she's there for evaluation, but less "you could do better, and here's where you messed up," and more as an outside eye to judge whether the interpretation fits the music well, somewhat, or not at all. She's also there to do the analysis: "Okay, I watched 60 videos of Noelia and Carlitos for you two, and here's what I took away." Unlike me, she has 30+ years of teaching tango, so her analysis is more incisive than mine ever could be.
I did take a few musicality workshop (not many get offered).
I've done a few, too. The aforementioned Erdemsel comes to mind. But no, I'm not talking about that at all. That's all near-mathematical analysis of notes and measures and such, and "now the violins come in." Not useful to me . . . I already do that naturally.
For the past several years my main intention in dancing is about expressing the music.
To be clear again: I don't distinguish "musicality" from "expressing the music." They're synonyms from where I'm standing.
I do receive positive comments on musicality, which have increased in frequency in the past few years.
As do I, and I do thank my coach for the work we've done on that. Last week, a follower started crying and I said, "Oh, no! Have I hurt you?" She replied, "No, it's just that you led the emotion of that Biagi piece I always hated, and now I love it and realize I never actually
danced it." This week, a follower said after a Pugliese tanda, "That was the most emotional tanda I've danced yet." She has been dancing for longer than I have been.
So, the work pays off.