"Christmas" by Ed Gerhardt -- great fingerstyle guitar arrangements of Christmas tunes"A Scottish Christmas" by Maggie Sansone with Bonnie Rideout and Al Petteway -- acoustic versions of Christmas carols on hammer dulcimer, fiddle and guitar.
Why? They set a nice warm, cozy mood for sitting by the fire. They stand up to close scrutiny, but work well as background music for other holiday activities. And the playing is perfect for guitar wonks like me.