To add onto this point, I keep thinking about this line: "You saved my life. The place I grew up was a grey, unfeeling nothing. And then I heard your voice and I knew for the first time that there was beauty in the world." (Morse to Rosalind in Overture)
I like to joke to about Endeavour being in many ways the Frasier of detective shows (and I stand by it!), but one way it's different is Morse's relationship with opera and classical music.
Opera especially is often associated with elitism, and like I said about the potential for a posh actor to have been cast, Morse could've easily come across as a pretentious fop due to his interests and going to Oxford.
But I don't think he does. Instead, his passion is really moving and relatable to me. It's not about him having some kind of cultural superiority over people. It's about the power of art to save lives and give people an avenue for emotional expression. No matter their backgrounds.
Endeavour's use of opera and classical music allows you to get a sense of the deep romantic streak and pain in his heart, and it actually made me finally understand the appeal of opera.
