They are related I guess you would say. 1st you have to be a Master Mason which is Free and Accepted, then you can take several other branches once you make Master Mason, this would be Scottish Rite, York Rite, or Shriners. In this case he chose York Rite. I hope this helps.

Fraternally Yours,
Larry Young
DeQuincy #279 F&AM
Merryville #329 F&AM
Pelican Civil War Lodge #1861 F&AM