A half-dozen cool things in music, from two points of view: Kate-Madonna Hindes Quast of Lakeville: 1 Robert Plant and Alison Krauss, "Please Read the Letter." Subdued in its sadness, yet still clinging to hope, this is one of my favorite jams that they played last summer at the Somerset Amphitheater. We just got our tickets to see them at Mystic Lake amphitheater in June. 2 U2 at the Sphere ...