Showing posts with label score. Show all posts
Showing posts with label score. Show all posts

Wednesday, 18 January 2012

Psychotransitionary datamoshing on parade, with MC John Cage (apologia)

nb: If you are not trained in the interpretation of psychogeographic metering I recommend you start the video and let it play while reading the notes below. It is not meant to be entertaining.



Technical Notes


I AM SO SORRY

It is often said that a film or video should stand up on its own, unsupported by the post-rationalisations of its progenitor. I don’t necessarily agree with that, but anyway in this case the movie is a mistake and I feel I owe you an explanation.

COMPRESSING/DECOMPRESSING EMOTIONAL VALUES

Last week I set out to edit our short film of the Nexus Art CafĂ© float at the Manchester Day Parade 2011. The footage had been shot on Super 8 film and transferred, out-of-house, to digital, and I had watched it back in the latter format without any problems. However, when I then imported the same digital file into the Institute’s post-production engines for editing, I was confronted with the images you see in the above video. Something had gone wrong. I assumed it was me.

My first instinct was to delete the file. But since a lot of my work here at the Institute involves the recovery of lost films, I took pity on whatever future-me might have the job of reconstituting the canon of ‘unintentionally datamoshed parade movies of the early twenty-first century’. I saved him or her a job by saving the corrupted file. Anyway, when one ‘deletes’ a digital file it is not actually erased, but only marked for overwriting - and so, if data-energy is never truly destroyed but only restructured, might I not learn more from my mistakes by taking responsibility for restructuring the file's raw information myself?

I set about charting the binary ruins of the video, and it was not long before I began to notice a familiar pattern. Having seen the uncorrupted rushes of the parade, I recognised amongst the rearranged pixels a visual echo of the route we took. There, through the luminous video-fog, could be made out the streets and buildings and the dancers and even some of their moves. But, in addition, the newly fragmented pattern seemed to channel the conflicting feelings I felt on the day:
  • The pride I felt in representing with my Nexus comrades and celebrating my adopted city, shattered by self-consciousness and crowded-room loneliness into neat rectangular shards.
  • The particular dismal brand of existential emptiness I’ve only previously felt during extended periods of inactivity while playing left-back for the GM Hurricanes, punctuated by the giddy euphoria of eye contact with this old friend or that sworn enemy in the crowd.
  • The desire to dance and the fear of falling over, expressed through neurotic video jitter.

Somewhere between committing the images of that day to film, and translating it into a digitally manipulatable form, it seemed that the movie had become corrupted moment-for-moment by the emotions I felt on parade. How?

You will remember (and it doesn’t matter if you don’t) that for three months over the summer of 2010 we were asked to vacate the Institute while one of the major search engine companies mapped the dynamic emotionality of the premises for its latest online cartography resource: a (still) unnamed(*1) psychogeographic atlas of the known universe. It so happened that, as they worked in our absence, several expensive pieces of their psychocartographic machinery were irreparably blown due to incompatibility issues with the Institute’s wiring. The workmen dumped the remains in the Institute’s gardens before they left, and since that summer our IT manager(*2) has frequently raided this abandoned equipment for spares. I asked him: was it possible that some kind of ghost codec had hijacked the parade file and decompressed its latent emotionality? Some frustrated algorithm designed for compressing psychogeographically-metered video, now released from its silicon purgatory by the integration of its motherboard into the Institute’s hardware infrastructure?

He told me No, it was not possible, but that as emotion is a matter for the heart and meaning is created in the mind - and if it would make me feel better - I could certainly ‘read’ the video as some kind of pseudo-scientific videograph of the emotions I felt on parade. This did in fact make me feel a bit better. Then he pointed out that nobody else was going to see the corrupted video anyway, which made me feel worse again - yet more determined to salvage the thing.

PIANO HACK

The moving images were saved by mere fact of their re-contextualisation. By considering the broken video from a psycho-transitionary angle, it had meaning again, without even needing to be ‘restructured’. But it still wasn’t much fun to watch, and it needed some sound. It would be dishonest to create and sync up a psychogeographic soundmap after the matter, and besides I didn’t have the processing power to facilitate such an endeavour. Instead, I thought about a song.

The idea of chance discovery and the turning of unfavourable circumstances to one’s creative advantage called to mind John Cage’s invention of the hacked piano, or ‘prepared piano’ as it was known at the time. It is a story that he recounts on Indeterminacy, a recording of 90 one-minute tales ranging from composer-clique gossip to Zen parable. Cage was the most important composer of the twentieth century but he died without hearing the word ‘Pro Tools’. So I decided to rip/sample/steal this most pertinent anecdote of his and add a beat: time, rather than tone, being the fundamental index of music; and beat music being an instant fix for unwatchable movies.

In the original recording of the story, Cage solves a technical problem - how to create percussive music in a room where there is only a piano - by opening up the piano and attaching objects (a pie plate, a nail) to its strings. I decided to hack the narrative so that in the remake he solves the initial problem but creates a new one, accidentally inventing Dance Music (rather than music for a dance) and being unable to un-invent it. This unhappy ending, this punchline of undesired creative productivity, brought the anecdote closer to my own experience.

The audio facilities at the Institute are less than ideal. The track was put together using Audacity 1.2.6 on an iMac with a 600 MHz G3 processor and 256MB RAM for your listening pleasure, though it might have been easier to use tape and scissors. Bring on the interface city where a gesturally operated Protools XI will be embedded in the ambience of bus shelters! In addition to the Cage number, The John Cage Bounce (as the new song was christened) samples The Rose by Nine Circles and Martin Denny’s March of the Siamese Children. There is no original sound.

TRASH BIN

(*1) I suggested they brand it [search engine company name]Hurt. But by the time they read my email, they had apparently lost interest in building a personal rapport with the Institute’s staff and the series of cold but suggestive replies I received seemed to have been generated by a bot or similar
(*2) whom I detest

Monday, 4 July 2011

Temporary Musical Lexicon no.1

An entry in the Glossary project

Over the course of one working day, Nanneman showed a movie scene to eight city council colleagues (Respondents A-H) in turn, asking each of them what meaning they thought the accompanying musical soundtrack was intended to convey. The eight answered respectively:

A. Apprehension
B. The secret presence of a third character (possibly an antagonist) within the scene
C. Resentment
D. Hunger
E. That one or both of the (visible) characters has an unspoken crush on the other
F. Some kind of alert regarding the main character’s bank account
G. Boredom
H. Sleepiness

The scene and its score had been identical for each viewer.

This was the first of a series of experiments designed by Nanneman to prove to his colleagues that the film score is, in its most familiar form, obscene: undisciplined, insular, a casual insult from the composer to the other technical departments of the conventional film set.

As music has no meaning outside of itself - is merely abstract sound selected or generated and organised according to taste - Nanneman postulated that to translate it into something meaningful for the purposes of a film score would require the invention and imposition of an internally consistent musical lexicon. Thus, for test purposes he invented a language of 1024 musical sounds with arbitrarily chosen but specific meanings, which could be combined polyphonically to either express that which isn’t otherwise manifest in a given scene or to reinforce that which is. He re-scored the sample scene from this new palette, and played it again to his test group. This time, the eight guinea pigs respectively understood the music as intended to evoke the following:

A. Terror
B. The secret presence of a third character (definitely an antagonist) within the scene
C. Resignation
D. Nausea
E. Sexual chemistry
F. The main character is ruined and will find out shortly in humiliating circumstances
G. Resentment
H. Sleepiness

For Nanneman, although the results lacked the consistency he sought, the fact that the respondents’ reactions had moved in broadly the same direction was encouraging. He speculated that for the consistency of his musical lexicon to take full effect, the test group would have to sit through several examples of its use so as to be able to infer meanings through context and repetition, as we do with any language: to hear a single theme in isolation means nothing by itself. Unfortunately, it appears that middle-management had by now grown wise to Nanneman’s misuse of his colleagues’ time, as several of the latter declared themselves unavailable for the next round of tests. In order to sustain the legitimacy of the experiment, he wrote up detailed character profiles of the absentees and asked Hanni to step in for them and answer as she believed they would. This time, the test scene was, for each respondent, preceded by an hour of preliminary scenes, each scored from Nanneman’s 1024-sound musical idiolect in order to familiarise them with its terms. Unfortunately, it is not known how many or which of the original eight guinea pigs Hanni stood in for. The meanings inferred were as follows:

A. Perplexity
B. The secret presence of a third character (possibly a gangster, and even if not that would be a good idea) within the scene
C. Perplexity
D. Perplexity
E. Erotic love
F. Perplexity
G. Sleepiness
H. Perplexity

These results represented a stunning vindication for Nanneman, and if the meaning his score was intended to convey could not yet be universally understood, he considered a degree of ambiguity to be forgivable - otherwise one might as well print the meaning of a score across the screen in plain letters. Discarding Temporary Musical Lexicon no.1, Nanneman now began work on a variety of automated composing systems for creating music of integrity, anchored scientifically to a movie’s fundamental qualities, internally consistent, and no longer obsessed with telling its own senseless story.