I finally saw Chicago last night (touring company) after years of listening to the film soundtrack, thought "I'm sure WDWMagic has a musical thread!", and found nothing. So, here it is, the thread for people like me who have way too many soundtracks to count.
Some favorites of mine-
ALW- Phantom of the Opera
Sondheim- Company
Rodgers and Hammerstein- South Pacific
Loerner & Lowe- My Fair Lady
Kander & Ebb- Chicago
New musical- Hamilton
Off-Broadway- Heathers
Disney live action movie- Mary Poppins
Disney animated- Hunchback of Notre Dame
Online- "A Very Potter Musical" and "Twisted: The Untold Story of a Royal Vizier" (both are by Team Starkid, highly recommend both of them if you like Harry Potter or Disney)
Guilty pleasure- Mamma Mia! (Saw it in NYC about 10 years ago, left with a smile on my face and a dance in my feet)
First Broadway musical I saw- Beauty and the Beast
I'm seeing Something Rotten next month, and I'm really excited for it.