available in March 2010:

Ernst Karel, Heard Laboratories (and/OAR)

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Ernst Karel and Annette Krebs, Falter 1-5 (Cathnor)

 

released in 2009:

Heard Laboratories, performed, on Chicago Sound Map Performs Compositions by Olivia Block and Ernst Karel (Kuro Neko)

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EKG, Electricals (another timbre)