DUSTIN LUCA/Staff Photo. The high school's new all-girls show choir, Nothing But Treble, strutts its country roots as it performs Shania Twain's "Man! I Feel Like A Woman" for members of the association's other show choir and chamber choir. The performance was part of the final day of Andover High Choral Groups' summer camp, where all three choirs performed what they had learned over the span of a few days to each other. 9/1/11

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