In an episode on mapping, This American Life, among other things, analyzed the "music" produced by a typical office. The fan whirrs in F#, the computer hums in G, and the copier strikes an Augmented D third.
The root notes of these sounds were then played together on a keyboard. At times the result was beyond dischordant, horrible. How does this affect the worker's psyche? An interesting phenom. The Bay Press therefore pledges to one day feature not only excellent feng shui, but harmonic tuning of all its office machines, in its planned 176-story tower.
Link to episode 110 of This American Life. Available for free on iTunes podcasts.