Classical music offers something on a large scale

Very few art forms offer something as big as an orchestra—one hundred people playing music that can last over half an hour.

To start with, try to identify some of the different things you hear.

• Pick one of the nine Beethoven symphonies, then add to the Western canon: Brahms Second, Tchaikovsky's Sixth, Mahler's Fifth, Bruckner's Seventh, and Shostakovich's Fifth.
• Or start from the 21st century and work backwards.