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This has been Christie Dashiell’s year. The young jazz vocalist has been a visible and popular presence for quite a while, but she stepped up her game as a featured performer on D.C.’s two best 2014 jazz recordings: Reginald Cyntje’s Elements of Life and Mark Meadows’ Somethin’ Good. On top of that, she was an Artist In Residence at Strathmore, a program that’s quickly become a rite of passage for jazz musicians in the D.C. area. Clearly, Dashiell’s formidable singing talents struck as much awe in the folks at Strathmore as they have with everyone else (including her former professors at Howard University), since they’ve awarded her the plum holiday slot for her AIR alumni concert. After they’ve been delivered in that satin voice with a flawless sense of swing, Christmas carols will never be the same. Christie Dashiell performs at 2 p.m. at the Mansion at Strathmore, 10701 Rockville Pike, North Bethesda. $17. (301) 581-5100. strathmore.org.