Title: Young Person's Guide to the orchestra
Listen to each section for a demonstration of the sound
0-3:49 - introduction
3:50 - Woodwinds
7:03 - Strings
11:45 - Brass
14:20 - Percussion
16:20 - Fugue. https://www.youtube.com/watch?v=ZG4SKgCpppE&t=41s
Demos of individual instruments.
Woodwind, Brass, Percussion - https://www.youtube.com/watch?v=CCTeSjpDsIs