Zbyněk Vostřák
Zbyněk Vostřák ( 10 June 1920 – 4 August 1985 ) was a prominent Czech composer of "New Music" . 
<triplet> Zbyněk Vostřák <subj> 10 June 1920 <obj> date of birth <subj> 4 August 1985 <obj> date of death