Dieter Zobel aka Didier Leboz: serial tinkler, inventor, freestyle freak Tension. Performance. Resistance - our Zonic Spezial documenting underground cassette culture in the latter years of the GDR caused quite a stir when it first appeared in 2006. A collaborative effort with the legendary ZickZack label and Verbrecher publishing house, "Spannung. Leistung. Widerstand. Magnetbanduntergrund DDR 1979-1990" (to give the work its full title) caused many listeners, especially those in the West, to prick up their ears in astonishment when they played the books accompanying CDs. This odd potpourri of swirling post-punk manifestations was compiled with solid interpretive authority by Bert Papenfuss, Bo Kondren, Bernd Jestram, and Ronald Lippok. They did, however, erroneously attribute one piece to Joerg Thomasius and Dieter Zobels Ostkraut band Das Freie Orchester instead of the "Musik aus dem Regen" tape on their own Kroeten Kassetten imprint.