Listen to Wikipedia is a curiously soothing interactive web app that represents recent changes to Wikipedia with sounds and visuals. Each Wikipedia edit is shown as it happens with a circle and a sound. The characteristics of the circle and sound vary to denote information about the edit. Listen to Wikipedia was created by Stephen LaPorte and Mahmoud Hashemi.
Bells indicate additions and string plucks indicate subtractions. Pitch changes according to the size of the edit; the larger the edit, the deeper the note. Green circles show edits from unregistered contributors, and purple circles mark edits performed by automated bots. You may see announcements for new users as they join the site, punctuated by a string swell.
image via Listen to Wikipedia