John Russell Vermillion Vortex
2010
23 minutes
High quality version here.
"I hope to be surprised by the meanings that these works can generate, so that by putting the right materials together, they can do more or result differently from what I expected. This process is opposed to metaphorical constructions, where artists expect to control the meaning of a work by defining how it is to be read symbolically. I want to work with what an image means in a public world. So when people bring their understanding of how images work, and how things are in the world, they can do something completely different from what I anticipated when I put them together."
Jennet Thomas All Suffering SOON TO END!Cory Arcangel Drei Klavierstücke, op. 11 I, II and III 2009
In Cory Arcangel's Drei Klavierstücke, op. 11, the artist has remade experimental atonal composer Arnold Schoenberg's piece of the same name (translation: Three Piano Pieces) 100 years after the piece was written out of videos of cats 'playing' pianos that he found on YouTube.
Discussing the piece on his website, he says that the piece was inspired by the increasing similarity of YouTube content to his favourite art videos - stating that the videos there increasingly surpassed those of his favourite artists. He also said that it was "Probably [his] proudest "net" moment ever as it wz featured on Cute Overload."
Be sure to read his page on the piece. He lists the videos used, tells you exactly how he made the piece (even offering the code he wrote for you to use to try something similar) and allows you chance to listen to a specially made comparison piece which plays the cats in the left speaker and the recital by Glenn Gould that he based the piece on in the right.
If you want more on his work, watch this lecture, and be sure to check out his website and YouTube channel.

A mini documentary, a video work and some links to performance documents by Christian Marclay.
Marclay emerged from 1980s New York's experimental music and performance scene. Developing turntablism in parallel with, but entirely separate from, Hiphop artists such as Grandmaster Flash, Marclay's approach is abstract and more inspired by experimental and avant-garde music than soul and funk breaks. Preoccupied with the cracks, pops and skips as much as the recordings on his records, he puts his records and turntables through some unbelievable abuse. Perhaps none quite so severe as in this piece though.
Here's another relic from the UbuWeb archive,
This video features a 15 minute performance on 3 turntables and a range of samplers, and interview in which Marclay discusses a number of his most famous pieces including Record Without A Cover and Guitar Drag (below). The presenter is a little bizarre, but Marclay explains his thoughts on his work and methods eloquently.
This video, an audio and visual document in which Marclay ties an amplified guitar to the back of a truck before driving around the town of San Antonio, Texas, is rich with cultural references; Fluxus performance, incidental music, rock'n'roll stage-trashing and road movies are all apparent. More specifically it addresses the racially-aggravated murder of James Byrd Jr. who was dragged to his death behind a pickup-truck in 1998.
If you're left wanting more, there's another performance from 1989 here.

Amanda Beech Sanity Assassin, 2009, installation views.