It is happened by offer of main publisher of this work Boosey & Hawkes. There are two versions of instrumentation. First is for large orchestra (1.picc.2.2.2-2.2.0.1-timp.perc:cyms/BD/SD-pft-strings)
Second one is reduced scoring by Udo Zimmermann and Rene Hirschfeld (1989): 2.1(=corA).1(=bcl).1(=dbn)-1.1.1.0-perc(1):timp/BD/SD/susp.cym/tgl- pft-strings(1.1.1.1.1).
Both versions will be available with full scores and orchestra parts, piano scores with English version and Czech translation.