Final answer:
Tchaikovsky's ballets include "The Nutcracker", "Swan Lake", and the ballet version of "Romeo and Juliet", while "The Firebird" is composed by Igor Stravinsky.
Step-by-step explanation:
The compositions that are examples of Tchaikovsky's music for ballet are "The Nutcracker", "Swan Lake", and "Romeo and Juliet". These are some of the most iconic works by the Romantic era composer Pyotr Ilyich Tchaikovsky, known for blending rich orchestration with expressive melodies. The composition "The Firebird", on the other hand, is not a work by Tchaikovsky but by another celebrated Russian composer, Igor Stravinsky, and is also renowned for its revolutionary impact on modern ballet music.