Mary Beth Tawes of Melodic Pianos is wonderful - she is very talented when tuning your piano and she is respectful of your time and resources! http://melodicpianos.com
Sheet Music for Fun
I use SheetMusicDirect.com for single songs ( https://www.sheetmusicdirect.com/en-US/ )
Locally, I go to Music and Arts either in Sterling or in Leesburg. They are very knowledgable, kind, and willing to go the extra mile to make sure you have what you need without being pushy. I favor them over other local shops.
Have you ever wondered about the pedals on a piano? https://www.hoffmanacademy.com/blog/what-are-piano-pedals-for/
Can you tell the difference between a cheap and an expensive piano? https://www.youtube.com/watch?v=ApGXujZVWf4&app=desktop
How were keyboard instruments developed? https://www.youtube.com/watch?v=4uCCw_hmILA
Apps for Home Use
These are all available on the Apple App Store, most of them for free. Each brings a particular skill set into focus and emphasizes some aspect either of piano playing or music in general.
Flashnote Derby https://apps.apple.com/us/app/flashnote-derby/id453126527
Note Rush https://www.noterushapp.com
The Most Addicting Sheep Game Ever https://apps.apple.com/us/app/the-most-addicting-sheep-game/id550921301