Family offerings with yuletide spirit this month include James J. Mellon and Scott DeTurk's delightful musical adventure, Yo Ho Ho! A Pirate's Christmas (NoHo Arts Center, through December 28), and Santa Monica Playhouse's Alias Santa Claus (December 6-21) will return this year, in which Old St. Nick visits a pioneer family on a blustery December night in the 1800s.