Susan Kelley. "Bass Clarinet Basics" (به انگلیسی). The United States Army Field Band, Washington, DC. Archived from the original on 14 June 2011. Retrieved 15 May 2011.
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Susan Kelley. "Bass Clarinet Basics" (به انگلیسی). The United States Army Field Band, Washington, DC. Archived from the original on 14 June 2011. Retrieved 15 May 2011.