Example 5b. Unusual features of Tchaikovsky’s Bflat minor Piano Concerto (1874), which may have provided the bases for Nikolai Rubinstein’s negative criticisms, followed by possible “programmatic” explanations relating to his romantic relationship with Artôt.

I. First movement: 5a | 5b | 5c | 5d | 5e | 5f   II. Second movement: 5g | 5h | 5i | 5j   III. Third movement: 5k | 5l

b.    Unusual use (for Tchaikovsky) of a Russian folk song (“Oy, Kryatsche, Kryatsche”) as the principal theme. — His rationale for choosing this melody may be its disguised references to both his and Artôt’s acronyms: