The exact arrangement of the rooms in Pushkin's day is not now known.
[11] "The Stone Guest" is founded on the Don Juan legend, like the familiar opera "Don Giovanni." Musorgsky set it to music, in sonorous, Wagnerian recitative style (though the style was original with him, not copied from Wagner, who came later).

It is rarely given in public, but I had the pleasure of hearing it rendered by famous artists, accompanied by the composer Balakireff, at the house of a noted art and musical critic in St.Petersburg.
[12] The reference is to Godunoff's presumptive share in the murder, at Uglitch, of Ivan the Terrible's infant heir, the Tzarevitch Dmitry..