Opusnames starting with "O"

• "Oath to the People's Commissar" for bass, chorus and piano opus 58G
  
• "October", symphonic poem C minor for orchestra opus 131
  
• "October Dawn", song for soloists and chorus opus 95G
  
• Orchestration of 27 romances and songs opus 58F
  
• Orchestration of Beethovens Arrangement (opus 75 no. 3) of Mephistopheles's "Song of the Flea" opus 146B
  
• Orchestration of Eight British and American Folk Songs for voice(s) and orchestra opus 63F
  
• Orchestration of Fleishman's chamber-opera "Rothschild's Violin" after Chekhov opus 66B
  
• Orchestration of "Four Monologues on Verses by Pushkin" for bass and orchestra opus 91B
  
• Orchestration of "Four Romances on Verses by Pushkin" for bass and orchestra opus 46B
  
• Orchestration of "I Waited in the Grotto" of N. Rimsky-Korsakov for soprano and orchestra opus 2E
  
• Orchestration of "Internationale" by P. Degeyter opus 48B
  
• Orchestration of "Satires", five romances on verses by S. Chorny for soprano and orchestra opus 109B
  
• Orchestration of "The Excursion Train Polka" by J. Strauss opus 58E
  
• Orchestration of the opera "Boris Godunov" by Mussorgsky opus 58
  
• Orchestration of the romance "Spring, Spring" to verses by A. Pushkin for bass and orchestra opus 128B
  
• Orchestration of Tishchenko's cello concerto no. 1 opus 134B
  
• Orchestration of "Wiener Blut" by J. Strauss opus 58D
  
• Overture on Russian and Khirghiz folk themes for orchestra opus 115