Dudley, Anna Carol (September 17, 2006). "A Chorus for Any Composer". San Francisco Classical Voice. Archived from the original on November 20, 2008. Retrieved December 10, 2009.
Dudley, Anna Carol (September 17, 2006). "A Chorus for Any Composer". San Francisco Classical Voice. Archived from the original on November 20, 2008. Retrieved December 10, 2009.