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  • Cello Loop: Gretchen Yanover electrifies classical music

    When cellist Gretchen Yanover performs with the Northwest Sinfonietta in Seattle, Tacoma and Puyallup this month, she won't just be sticking to classical. Instead, Yanover will plug her electric cello into a looping pedal and do something many orchestra musicians are a little scared of: her own improvisation.