Der goldene Hahn
Gradsky is a tenor who is reported to have a three-and-a-half octave vocal range, and also plays 12 instruments. He performed the demanding role of the Astrologer in Rimsky-Korsakov's opera "The Golden Cockerel" (Золотой Петушок – Zolotoy Petushok) in Moscow's Bolshoi Theatre in 1988.