Principles of Orchestration by Rimsky-Korsakov.

Go online to the amazing Garritan Interactive Principles of Orchestration course. This uses the Rimsky-Korsakov text with audio files created of all the score extracts. It also includes video clips of sections of the orchestra and individual instruments and at the end of each chapter there is a series of exercies to do, with MIDI files and other resources available. And - it is free!

http://www.northernsounds.com/forum/...splay.php?f=77