Stephan Mathieu's FrequencyLib was originally released in 2001 on Mille Plateaux's Ritornell sublabel. A quintessential document of the late 1990s/early 2000s Pismo PowerBook era of digitally manipulated audio, FrequencyLib is an adept meditation on the entropic possibilities inherent in popular music. Included with this reissue is the complementary Sad Mac Studies EP - first issued in a run of 100 on Robert Meijer's boutique En/Of label. Exploring similar themes/processes as FrequencyLib, Sad Mac Studies reimagines and deconstructs the sonic world of Sesame Street.