1.From video. Sharper, yes. Especially when she pitched her voice up at the end of the song. Could be from various variables. You own the system what do you think attribute to this "sharp."
Mid-high: 3,500-6,000Hz( presence area- brilliance area)
In the middle / upper heights, for example, the sibilants (hissing sounds of the voice) come into play. As a rule, an overpronounced display is perceived as unpleasant. Overall, a glassy, hard and metallic sound impression can come from this area, or vice versa an opaque musical image.
a popular method is to build a level drop in the area with xover or selecting the tweeter. people like to call it "english tuning" you can listen to music for hours without getting tired. I must have built 10 loudspeakers with this tuning, your Eurodyn has it too could be heard very clearly in your video.
I just find it a bit boring after decades, sorry. i want to hear the human voice with full energy and clarity. I tuned my speakers to be more linear.
2.
the musica nuda recording (petra magoni) plays extremely detailed with an emphasis on the sibelante (s"and f" tones). maybe not the best choice for neutrality and musicality my opinion