A mixed Bach set from H&H
Scott Allen Jarrett, Sonja DuToit Tengblad, and the musicians of H&H. Photo: James DoyleIt's little known outside musical circles that Handel and Haydn offers a second Christmas concert every season, centered on the great J.S. Bach. And if the Society's annual Messiah remains something of a musical constant, their "Bach Christmas" is always a variation on a theme - not just because Bach wrote so very much sa…