Sound is a compound, that holds us together.

Re-posting from Huffingtonpost, I see an intrinsic connection between 2 projects. One derives from virtual space, while the other draws from physical.

Meet Stanley. Stanley is the world's first interactive player piano and a 21st century take on the popular player pianos that came about in the 1920s. Debuting at Seattle's 'Capitol Hill Block Party' (July 20 - July 22), Stanley takes song requests via Twitter (@stanleypiano) and plays them live at the festival. Stanley is an avid lover of indie music and has learned a song from each of the 100+ bands playing at the 'Block Party'. If he doesn't know a song, he will learn it. Pretty cool stuff, we think.




When users tweet their song requests to Stanley, "Stanford," a custom moderation tool filters the requests and adds them to a song queue. Then a pre-made 'MIDI' file of Stanley's rendition is loaded and a USB MIDI interface sends the note information to Stanley's hardware controller. Each note triggers an electronic solenoid valve which allows Stanley to play a key.
Stanley was created by Seattle creative agency, Digital Kitchen, to "honor the independent maker spirit of the Capitol Hill neighborhood and provide a window into the talented musicians playing at the Block Party."

Next we move on to design student Mark McKeague's fascinating piece of music using synthesized sounds of London traffic. He simulates traffic on a "map" of sheet music, with the cars playing the various notes. Using processing, he simulated the various movements of vehicles in Westminster. Then, to turn the movements into music, he used the program MaxMSP to acquire audio signals of each vehicle depending on the vehicles proximity to other vehicles and to the environment in general.



McKeague explains his project this way: “Electric cars are increasingly using synthesized sounds in order to mimic the recognizable noise of the internal combustion engine. I explore an alternative in which the sound that the cars generate changes according to its relationship to other road users and the environment.”
The result is an absorbing video with a “symphony” of hypnotic, calming, and almost alien-like sounds. McKeague’s "City Symphonies" is seemingly worlds away from the reality of honking horns, revving engines and cars accelerating, but technologically he is right on point.
In McKeague’s words, “The roadside becomes a new context for sound - the city is the score.” 
Both the projects state an opinion on the degrees of connectivity between distant nodes in space. These nodes may be people, communities or even nations. Its the manipulation of the "how" that stuns you every-time.
More at http://stanleypiano.com/ and http://markmckeague.com/work/city-symphonies/