Question: Vladislav Bulakhov introduced what pieces by Tchaikovsky at the First International Festival of Classical Guitar?
Sentence (from "The Seasons (Tchaikovsky)"): The Seasons, Op. 37a (also seen as Op. 37b; Russian: Времена года ; published with the French title Les Saisons), is a set of twelve short character pieces for solo piano by the Russian composer Pyotr Ilyich Tchaikovsky.
Relevant evidence: Yes