First Rule- Note selection is random. First note was A, from there a coin is flipped. Heads means up, tails goes down, then I rolled a dice to dictate how many semitones in the decided direction the next note would be, and continues. (octaves are irrelevant as the keyboard used was too small)
Second Rule- Traffic Dictates phrasing, as close to possible the cars and trucks cue me to play each note
Third Rule- Single takes, Each recorded channel had to be in the first attempt of playing (3 total)
Fourth Rule- An Instrument that I am bad at; this was played on Pianica and Conga. I am terrible at all keyboard related instruments (this keyboard was even labelled) and I pretty much gave up playing any percussive drums with excessive impact after breaking my pinky finger a couple years ago.
Fifth Rule- Hold notes until the next car passes. (as much as possible)
So the chosen melodic structure is played as is on the left lane, and played in reverse on the right lane (these tracks are panned in the coinciding direction to enhance this). Conga is just played in the center lane. My expectation was that the random notes would produce a very tense and suspenseful harmony. But on the contrary, the wavering of my breath combined with the focus of the cars passing ended up giving it a somewhat relaxing quality (I suppose that will be up to you).