Without a doubt, 2014 has shaped up to be another joyous year for fans of Christmas music. Sony Music’s Legacy Recordings has been at the vanguard of delivering holiday music with a recent batch of titles from Johnny Mathis, Perry Como, Frank Sinatra and others as part of its Classic Christmas Album Series. Sony has also licensed festive titles from Robert Goulet, Rosemary Clooney, The Brothers Four and Frank DeVol and the Rainbow Strings to Real Gone Music. Those titles have recently been joined by 20 digital-only releases from the Columbia and…