Hi Nancy!
Your vacation is approaching quickly!
Since you are staying at Disney's All-Star Music Resort, you
are able to access any of the
Extra Magic Hours at the Parks. In order to be able to enjoy the park's attractions during Extra Magic Hours, your Key To The World Card
(your room key and park ticket card) will need to be shown to a Cast Member upon entering each attraction.
If you have the
Park Hopper Option on your park ticket, you will be able to visit more than one park in the same day and therefore you
don't have to be inside that same park already, earlier in the day in order to enjoy evening Extra Magic Hours. For example, with the Park Hopper option, you could visit Disney's Hollywood Studios during the day time and then go to Magic Kingdom
just for Evening Extra Magic Hours if you choose to.
If you do
not have the Park Hopper Option added to your ticket, you will be able to visit only one park per day, and therefore would only be able to attend Extra Magic Hours in the same park you've visited earlier the same day.
I hope that helps you out Nancy!
If you have any more questions regarding your upcoming visit, feel free to visit me again.
Wishing you a simply Magical time at Walt Disney World!
Kirsten