Orchestra was recorded as the Moscow chamber orchestra and the recording as a studio one; both wrong. This is the live recording of the world premiere, Grand Hall of the Leningrad Philharmonic, 18 September 1978, by the Leningrad Philharmonic Orchestra. Sources: operadis-opera-discography.org.uk/CLSHGAMB.HTM (1978(LI), Leningrad Philharmonic Orchestra, comment "Recording of the first performance (18 September 1978)", issued Melodiya C10 11599-600 and BMG Melodiya 74321 60319-2), and the booklet cast list transcribed in the file The Gamblers.txt beside the rip, which reads "Leningrad Philharmonic Orchestra ... Recorded live in the Grand Hall of the Leningrad State Philharmony, September 18, 1978".