In some ways I wish I didn't enjoy this animation of the Rite of Spring by Stephen Malinowski so much. The music is all synthetically generated using sounds from the Vienna Symphonic Library. All the rhythms, dynamics, and pitches are almost perfect (in the comments an astute trombone player noted a mistake). There is even a believable violin glissando. There are only a few places where the lack of human imperfection sabotages the excitement (particularly eight minutes into the second part, where all of a sudden everything sounds robotic). The animation, however, is remarkable. Watching the video is a fine lesson in orchestration.
Here's Part 1
and here's Part 2
Stephen Malinowski can't do his animations without getting permission for the recordings he uses. Permission costs money. Technological tools (which are expensive) cost less money than licenses. Making excellent electronic scores takes a large amount of skill, but it is a different kind of skill set from the skill set that most real-time (as in 20 or 30 years of experience) musicians have. What used to be considered a helpful tool for composers has become a viable option for replacing professional musicians in all sorts of ways. I can't really see any greater good coming from all this.
Sometimes I fear that the way things are going, we might be looking at a plausible future of large-scale orchestral music. I find this sad. Terribly, terribly sad.