Will Swain still have the hots for Sona and her music?

I doubt that the grand general of Noxus can just march into demacia in and out. Swain himself has no appearance changing abilities that we know of and we never saw Leblanc disguising someone else. I mean just because someone has magic abilities doesn't mean they can do everything.

And even if he was somehow able to disguise himself,he would have to travel a huge distance every time considering that the capital of Noxus most likely doesn't lie directly next to demacia(and noxus is HUGE) and even then he is most likely not even aware that her music is a thing. I mean if a spy told him "oh there is this cool music lady that makes good music",then swain would most likely not invest a whole lot of work and take huge risks,just for some music that he might like.

"used some kind of magic" at this point in the lore you might was well say everyone has the capacity to use teleportation magic...you know cuz Runeterra is magic magic maigc!