The 6 Phases of Work." Why is it the motherload? Well, because it's the perfect blend of what the interwebs goes CRAZY VIRAL on. You've got a deprecating work-related topic, cats used for anthropomorphic comic relief and it pulls on uber trendy gif animation magic.
Just like Netflix looked at the data of its streaming users and determined that the David Fincher and Kevin Spacey was optimal for "House of Cards," the creators of 6 Phases did the same, but with an internet meme spin. All in all it's a recipe for success.
The one gripe (if you could call it that) I have with this is that it leaves out some significant music genres and also doesn't cover some common work moods/times (e.g. post lunch sleepies, endless conference calls, days full of pointless meetings, happy hour anticipation/time watching, etc.) Other than that, it's puuuuuuuurrrrrrrrrrrrrrrrrrrrfect. Ha. See what I did there.