Answer
the organ is baroque
(I'll update as I find what the potential answers are)
Book musical- is defined as performance where musical numbers and dances are fully integrated into a proper narrative with define dramatic goals
jukebox musical- is a musical whilst is created using pre-existing songs.
concept musicals- i’d a musical where a theme, metaphor or concept is just as important as the overarching plot and the featured songs
Ancient roman architecture if you need a more specific answer let me know :) hope this helps!