Rubuta ci gaba don wannan sakin layi - Šlitr yana so ya yi wasa da kuma tsarawa a cikin salon "rock" na zamani a Semafor amma Havlík bai yarda ba. A cikin 1966 Šlitr ya kori "Ferdinand Havlík Orchestra", amma a ƙarshe ya kashe kansa tare da Semafor da Suchý. Duo ya rabu da kamfani na ɗan gajeren lokaci, kuma Šlitr ya gabatar da sabon wasan kwaikwayo "Ďábel z Vinohrad" (Iblis daga Vinohrady). A halin yanzu ya nuna zane-zanensa a Wiesbaden, Dortmund, da Birnin New York. A cikin 1967 ya halarci Expo 67 a Montreal, inda ya gabatar da wasan kwaikwayon "Stars of Prague", kuma yayin zamansa a Amurka ya nuna zane-zane a Hollywood da Houston. A cikin 1968 ya sake haɗuwa da Suchý kuma bayan abubuwan da suka faru na Prague Spring ya sake yin aikinsa na farko "The Devil from Vinohrady" a matsayin amsar kai tsaye ga mamayewar Soviet na Czechoslovakia
Ka yi haƙuri. Šlitr da Suchý sun kuma sanya hannu kan maganganun adawa da kwaminisanci 2000 Kalmomin da Ludvík Vaculík ya yi. A cikin 1968, Šlitr ya bayyana a cikin fim dinsa na ƙarshe, "Zločin v šantánu" (Lamunci a cikin Night Club).