On Friday night I schlepped up to Boulder and heard a great concert by Hot Rize, including a rare appearance by their alter egos Red Knuckles & the Trailblazers. In general I'm not a pure bluegrass fan (since I don't love the traditional variety), but Hot Rize are an amazing blend of that older sound with a modern edge, and on Friday night they were simply cooking. But I still miss the ever-creative playing of flatpicker Charles Sawtelle...