Opera in 4 acts by Rimsky‐Korsakov to his own lib. based on lib. for earlier scheme for opera‐ballet to be written in collab. with Borodin, Cui, and Mussorgsky, with ballet mus. by Minkus. Comp. 1889–90. Prod. St Petersburg 1892, London (semi‐staged) 1989, Glasgow (Bolshoy Co.) 1990.