Boston Pops Conductor Keith Lockhart may not be the most in-demand person this holiday season, but he’s one of them – just ask his family.“As my wife, Emiley, explained to two of my sons, then three and five, a few years ago, ‘Dada is very busy at this time of year, just like Santa Claus,’” said Lockhart with a laugh by telephone recently while driving from New Hampshire to Boston with Pops Director of Artistic Planning Dennis Alves and [...]