Then to some wild speculation in a separate post. The usual disclaimers about big cluster naturally apply.
About Amarr dance styles, and Amarr formal balls:I personally imagine upper-class Amarr public social dancing as regal, formal and elaborate. Something that makes upstarts without proper breeding and education stumble embarrassingly and show their common roots?
I imagine mostly dances for small groups of both genders. Intricate dance figures, symbology traced to the floor by dance choreography. Moderately complex but not very athletic steps - stuff that looks good in formal robes, but does not create an undignified smell of sweat.
I imagine very little or no body contact at all - couples/groups might hold hands, a common token like a ribbon, or perhaps not touch each other at all, only connected by simultaneous movement. Possibly the person in higher social standing would "lead" if there are parts where one has to go first or decide on a variation of coreography. Perhaps pauses where some people in the dance set stop dancing for a bit to allow for court intrigue?
There would also naturally be less formal social dance styles for less public and formal occasions, where appearances and dignity would not be so much an issue. I tend to imagine Amarr as a people with a strict ideas about what is appropriate in public and private.
About waltzing:If I had to pick a single Eve nation for waltz, to me personally waltz (and most other ballroom dancing) associates most strongly with Gallente. Specifically, a Gallente formal social dance feel.
Male-female couples. Partner held in close body contact encircled by your arms (and legs stepping between legs!). Couples dancing simultaneously in the same ballroom with very little personal space reserved for each.
Improvised freeform steps and figures based on simple basic step and rhythm. Easy to learn and participate in for everybody. And everybody does get to participate equally all at once, instead of, say, only after all the higher-rank people have danced.