She performs and records as a soloist, as well as with the old-time bands Uncle Earl and Sparrow Quartet.
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In 2005, Washburn returned to China with a group called the Sparrow Quartet, composed of Sollee, Fleck and Grammy Award nominated fiddler Casey Driessen.
Kronos Quartet | Modern Jazz Quartet | Arditti Quartet | Sparrow | AIM-7 Sparrow | Alban Berg Quartet | Pacifica Quartet | Sparrow Records | Song Sparrow | Juilliard String Quartet | Fine Arts Quartet | Emerson String Quartet | quartet | Amadeus Quartet | Vermeer Quartet | Pro Arte Quartet | Modern Folk Quartet | Mighty Sparrow | FLUX Quartet | Belcea Quartet | Ying Quartet | Turtle Island Quartet | sparrow | Socotra Sparrow | Shelley's Sparrow | Quartet on the Middle East | Petersen Quartet | Kenya Sparrow | Jack Sparrow | Iago Sparrow |