Answer:
a. Classical - 1750 1825
This era was headed by Mozart, Haydn, and Beethoven.
b. Romantic - 1820 1900
This era was headed by Tchaikovsky, Chopin, Schubert, Wagner, and others.
c. Renaissance - 1450 1600
This era was headed mostly by Italian and German composers that do not enjoy a lot of name recognition (Perluigi da Palestrina, Gesualdo, Ockeghem, among others).
d. Baroque 1600 1750
This era was headed by Bach, Vivaldi, and Handel. Claudio Monteverdi, the father of Opera, is also from this era.
e. Middle Ages 400 1450
This era was headed mostly by anonymous composers in both the fields of sacred music (liturgy) and non-sacred music.
f. 20th Century and Beyond - 1900 - Present
Some important composers of this era are: Stravinsky, Debussy, Prokofiev, Bartók, and Rachmaninoff.
Step-by-step explanation: