¡Hola! Bonjour! Ni hao! Hello and welcome to planDisney, Michelle! 
EPCOT is my family's favorite theme park in the whole world, so I'm thrilled you stopped by to chat about it. I haven't had the chance to see 
Luminous The Symphony of Us yet, but I can't wait. I hope at some point you'll experience EPCOT's newest nighttime spectacular inside the theme park along World Showcase Lagoon, but either your balcony at the 
Walt Disney World Swan Hotel or the walkway at 
Disney's BoardWalk will provide a solid preview. You'll see the peaks of the pyrotechnic portion of the show. 
Unfortunately, the music won't be audible from either location, so you can either await the complete in-park experience or stream the songs from the soundtrack on a mobile device. Check out 
this Disney Parks Blog post with a behind-the-scenes look at the music you'll want to cue up during the show. Brace yourself for some emotional tunes like 
Coco's 
Remember Me and 
When She Loved Me from 
Toy Story 2. If you're anything like Wade from Pixar's newest film, 
Elemental, consider packing some tissues!
Last summer, my husband and I celebrated our anniversary with a grown-ups-only getaway to 
Disney's Boardwalk Villas. On our arrival night, we were enjoying the evening performers along Disney's BoardWalk and just happened to be in the right spot to catch a glimpse of the fireworks when they started. It wasn't a perfect view, but an after-dinner stroll that included a glimpse of Disney pyrotechnics was a pretty perfect way to kick off our vacation. I wish you an equally enchanting evening! Quick tip: stop by 
BoardWalk Ice Cream a few minutes before the fireworks start to make the experience even sweeter!
Thanks for stopping by planDisney with your question, Michelle. Have a magical stay, and don't hesitate to come back and see us again. We're all ears!
Betsy