Here is a list of helpful and fun Music Websites:

Piano Adventure Lesson and Christmas Play Alongs:  (find your level and song and play along)

https://cloud.pianoadventures.com/

Music Theory.net is FREE and is super for practicing Note, Key Signature, Interval, and Chord Identification.  I encourage you to practice with it and improve your score each week!  https://www.musictheory.net/exercises

Classics for Kids http://classicsforkids.com  is FREE and features detailed information, audio stories, worksheets and games about classical composers and music periods.  

Making Music Fun http://makingmusicfun.net has loads of FREE sheet music, Games, and Composer Information.

Where to purchase music on-line:
http://sheetmusicplus.com

http://jwpepper.com
http://musicnotes.com has instant download and print capability.

You can find music locally at:
Music & Arts Center, Crossroads Plaza in Cary.    https://stores.musicarts.com/nc/cary/music-store-0095.html