Diction for Singers now offers an online language lab that corresponds with the textbook: Diction 2nd Ed. by Joan Wall and Robert Caldwell. My Emory University Music 441 students can refer to the Diction for Singers page on my blog for sign-up instructions.
http://www.celumbra.com/dictionLabs/Site/HowToUseTheLabs.html
Stephanie Adrian 
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