Released in May, 2016, this is track #13. Sienna. 66 BPM. 25 minutes.
We call it #13 because it's the thirtennth track in the collection, but technically it is Track #1 on the fifth collection, "Music to Code By Chapter 5."
This track is more dark (less treble or high-end frequencies) than most others. We've found that sharp treble tends to distract. That said, there is lots of texture to this one. It may be more simple musically, but it will keep you focused, and that's the idea.