Sweet hymns of joy “They are great tunes,” said Harvard choirmaster Edward E. Jones of “Jingle Bells” and “Sleigh Ride” — traditional holiday songs with a Harvard connection. Jones is seen here leading the 104th Annual Christmas Carols Service in Memorial Church. The full spectrum of life was on display at Sunday’s 59th Grammy Awards. Much of the attention surrounding the. Sears died in 2014 of lung cancer at age…