Monstercat Orchestral Suite is mash-up of various songs from Monstercat artists. Released on April 1, 2013 as an April Fools' joke, the song features no orchestra (you probably figured that one out). This was unfortunately deleted very quickly after being uploaded on the official Monstercat YouTube channel. The april-foolsish stuff is-
1. The music.
2. Deadly high visualizer.
3. Rainbow visualizer.
4. Dancing cat thumbnail along with the cat dancing in the bottom left corner of the visualizer during the song where the monstercat logo goes.