One of my recent obsessions has been with the Web's ability to connect disparate artists to tell a single story, specifically artists working in different mediums - like real-life mashups with a purpose beyond being fun and well-executed.  Enter the recent work of Teitur and Nico Muhly, which turns your videos (and video comments) into small music video vignettes:

Confessions is an audio-visual project by Teitur, composer Nico Muhly and the dutch ensemble Holland Baroque Society. About a year ago, these young and talented artists started a challenging project: composing music for YouTube clips. Even the comments were used as an inspiration for the lyrics and in a short time four wonderful songs were created, all matching the video's in a surprisingly brilliant way.

A lovely intersection of video, music and user-generated content.  Learn more at http://www.confessions-tour.com and watch samples below: