A large chunk of this song is a midi file created from the program Power Tab Editor. The musical part of it is random numbers typed into the program with the sound set to "fretless bass". The drums are also from this program, which is designed for guitars.
It was created by hitting random numbers while randomly hitting the arrows to go to the next notes and to other strings. The beginning of the song is set to 120bpm and uses only 16th notes with two drums going. One drum is called "synth drum" and is all 16th notes, the other is called "melodic tom" and is all 32nd notes. These two were randomly typed in. After this, the tempo switches to 40bpm and then the fretless bass staff goes to all quarter notes. This slower part is where the drums actually become planned out and are set to go really fast. Lastly, the tempo switches back to 120bpm and the fretless bass and one drum switches to 32nd notes while the other drum switches to 64th notes.
Next, I improvised some vocals all in one take. Then I improvised some guitar noise and added that in. Finally I played a pattern of notes on my keyboard and added this in during the slow part of the song.
I love this song. It will increase your life-span by 300% just by listening to it.