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Wednesday, April 13, 2011

Memory of the Future: Joan Grossman’s Video and David McIntire’s Music

H istory is marked by catastrophic events that defy meaning and understanding. The 20th century was a century of prosperity and progress; it was also history’s bloodiest. The death toll from war and genocide reached 140 million people. Trauma of this magnitude poses grave challenges to memory and thought. This work explores failures of memory and cognition—The Blackout—as a condition that plagues history, and is particularly problematic in an era of mass media, in which memory is increasingly disembodied and virtualized, undermined by [what might be called] a ‘Generalized Media Disorder’. Technologies of media and war are creating a condition in which the virtual world is displacing the ethical world. The Blackout is a space of memory and thinking that collapses with Catastrophe and falls into a stupor. Humanity has been nearly extinguished by the tremendous violence it has enacted, pushing philosophy, language and ethics to their limits.”
— BLACKOUT, jacket blurb.

A nd music can be both a political act and powerful antidote to the collapse of social memory and the erosion of community... the withdrawal into passive, vegetative isolation, each at home, continually surfing Netflix, surfing the web.

McIntire – ‘Revenants’ (electroacoustic recording, live percussion, 20-min)
McIntire & Grossman – ‘Singing Bowl’ (video, electroacoustic, live percussion, 47-min)

T he combination of the video imagery and the live and the electroacoustic music was imaginative and highly listenable and watchable. Joan Grossman’s video was elegant... with a simple beauty that leveraged symmetries across the vertical and/or horizontal axes in the center of the 8 x 6-meter projection screen in Epperson Auditorium. The video involved replication and reflection of imagery in kaleidoscope fashion, at times with superimposed additional imagery blended into the central part of the visual field.

U nlike certain computer music / media compositions where the composer-artists ‘try too hard’ or succumb to temptation and use too many of the diverse array of techniques and patches available to them (resulting in sensory overload for the audience, hindering our grasping a memorable meaning or narrative arc), McIntire and Grossman achieved a satisfying, deliciously cohesive, coherent effect.

P ercussionists Jennifer Wagner and Christopher Howard performed at percussion tables on the right- and left-hand sides of the auditorium, while the recorded electroacoustic tracks were played through Mackie SRS 450® powered monitors and SRS 1500® subwoofer at the front of house. Seated as I was front-and-center, the antiphonal bells and gongs and cymbals, and glass wine goblets bowed across their rims with violin bows, and hammered and brushed brass bowls, and Equilibrium® tuned-box slit-drums, and Daisy® BBs rolling on the underside of a tom-tom drum head—all of this was wonderfully ‘immersive’ with the house lights dimmed. Great sibilance of the live percussion sounds, creating a rich contrast to the electronically-filtered and distorted sampled-voice and other sound content in the digital-recording tracks. [The ‘live’ elements might be better still if yet another pair of percussionists were added, positioning them toward the rear of the auditorium/performancespace so that the entire audience could experience the intense immersive effects that we did at the front.]

T he electroacoustic recording and reproduction/sound-reinforcement EQ was expertly done by McIntire. Both of the pieces have a low-pitch ‘red-spectrum’ rumble—almost boilerroom-like, or intrauterine—that imparts a subtle but pervasive ‘interiority’ to the music, very chesty, very warm.

G etting the pre-recorded digital tracks to ‘sit’ well amongst live performers relies on the tracks having an even level, a congenial tonal and level balance, and the right reverberant ambience. McIntire does this superbly, gracefully executing minor adjustments at the workstation control-surface in response to moment-to-moment performance decisions made by Wagner and Howard. Compressor and gain automation settings were spot-on, so that the percussion sounds sat happily in-track, with none of the live percussion effects sounding too loud or too quiet or clashing with the pre-recorded sonic material and synthesizer tracks.

F or some of the voice content (e.g., DECtalk Hawking-esque recitations of NOAA National Weather Service Marine Forecasts; alpha-bravo-charlie...romeo-sierra-tango...zulu), McIntire adds density to the voice sample by upping the compression ratio to maybe around 6:1 or 8:1 and then adjusts the threshold to a couple of dB on average-level parts. This means quieter sections are left alone and anything louder is jumped-on hard, bringing it closer to the average level. The coherence or cohesiveness of these two compositions, each with its volume level and acoustic complexity ascending to a climax about two-thirds of the way through and then tapering to a quiet conclusion, is nicely enhanced by this approach.

M cIntire’s EQ and engineering are commendable as noted above, and he does not go overboard on special effects. His EQ cuts are made over quite narrow bands, and his boosting is gentle and wide. McIntire gently applies boosts in the 50-300Hz band to add warmth. He applies cuts in the 1 KHz band, to deemphasize nasal vocal sounds, and adds generous ‘presence’ with boosts between 4 KHz and 8 KHz. The magical sense of Nature and air and space involves a wide boost applied between 12 KHz and 20 KHz, and that was really beautiful up-front, seated in Row #1. With these two compositions that explore the interplay between Nature and Technology, between humankind and other species—between inanimate noisy things like water (sometimes seemingly talking to us, almost alive, almost human), and supposedly-sentient creatures (humans) who often act in hostile, destructive and uncaring ways as though they were inanimate—the musical and artistic success absolutely depends upon making these EQ choices right.

I n summary, a fantastic, powerful experience—beautifully composed, engineered, filmed, edited, and performed. Very happy!

T he ArtSounds series, of which the McIntire-Grossman ‘Memory of the Future’ program was a part, is co-sponsored by UMKC Conservatory and Kansas City Art Institute.

J oan Grossman is a Brooklyn, New York-based independent media artist and producer. Her work has been screened in more than 20 countries and won numerous awards. She is currently Visiting Professor in Film & Media Arts at UMKC. Grossman was formerly a producer for NPR and Voice of America on a variety of programs, including All Things Considered, Afropop Worldwide, Kids America, and The Territory of Art. She has worked in Africa, China, Russia, and throughout Europe, has produced media for public interest organizations and NGOs, and has also worked as producer on European documentaries and feature films. Joan has a Ph.D. in Media and Philosophy from the European Graduate School and has taught film production and theory. She has worked with leading theorists and filmmakers such as Agnes Varda, Claude Lanzmann, Chantal Akerman, Jean Baudrillard, and Jacques Derrida. Her book, ‘Blackout: On Memory & Catastrophe’, was published in 2009 (link below).

D avid McIntire is a Kansas City, Missouri-based composer who, with composer-musicologist Kyle Gann, co-directed the 2009 Second International Conference on Minimalist Music at UMKC Conservatory. In 2010, he launched Irritable Hedgehog Music, a record label focusing on minimalist and soundscape compositions. McIntire has performed with Colorblind James Experience. With pianist R. Andrew Lee he has produced a recording of Tom Johnson’s ‘Hour for Piano’ (link below).

Tuesday, January 18, 2011

Sequentia: Avaritia ipsa loquitur

T here was one dominant theme in medieval France: since the temporal world was moving continually toward decay, progress was always to be found in renovation, rather than innovation... Expansion and thus, by implication, maintenance of the cohesion of the body politic (res publica) were in fact entrusted to two separate powers: secular and ecclesiastical... Both were corrupt.”
— George Duby.

A nother dynamic aspect of intellectual life in Paris in the 12th Century was the art of rhetoric, during a time which saw the rise of virtuoso sermons and the power of the word in political and spiritual life. In ‘Minor natu filius’ we hear a concise retelling of the parable of the Prodigal Son (Luke 15:11-32) and a completely new manner of vocalizing... in which musical language and rhetoric shape the simple tale with an intensity that no mere reading [or forthright truth-telling] could ever approach.”
— Benjamin Bagby, program notes.

S equentia, Benjamin Bagby’s early music ensemble, will perform their ‘Voices from the Island Sanctuary: Ecclesiastical Singers in Paris (1180-1230)’ program on Friday night in Kansas City, a performance in the Early Music series presented by Friends of Chamber Music.

A pre-concert talk will be given by Prof. Nolan Gasser, Musicologist Emeritus of Pandora.com, and UMKC Conservatory’s Prof. Bill Everett at 6:30 p.m. in Grace and Holy Trinity’s Founders’ Hall.

T he program is filled with hot intrigue and cool subterfuge, all in florid Latin.

Ave gloriosa virginum regina
Aurelianis civitas [commemorating the riots in Orleans in 1236]
Procurans odium
O varium fortune lubricum
Curritur ad vocem nummi
Anglia planctus itera
Bulla fulminante
Descendit de celis
Minor natu filius
Zima vetus expurgetur
Veneris prosperis
Vitam duxi
Olim sudor Herculis
Annus renascitur
Novus annus hodie

T he intersection of courtly secular free-market and ecclesiastical shenanigans! Cathedral of Notre Dame in Paris, city within a city, bastion of aristocratic political schemes. Brazen repetition of themes within an ever-varying but invariably-corrupt form, sung in Latin that only insider/perpetrator literati would ‘get’. Unscrupulous ‘no-doc’ loans with scarcely-plausible flying-buttress means of repayment. New ‘entrepreneurial innovations’ in thrilling sonic structures echoing the dynamic new Notre Dame cathedral architecture and shady economics taking shape all around!

T he ‘Curritur’ is a jaunty exhortation to listeners, instructing them to perfect the art of usury and trickery. Greed is good! Avaritia ipsa loquitur!

S equentia will perform this program again on Saturday evening in New York, at 20:00 at Church of St. Mary the Virgin at 145 W. 46th St, as part of Columbia University’s School of the Arts series. Are-way ou-yay orruptible-cay?

C urritur ad vocem nummi vel ad sonitum: hec est vox ad placitum!
Omnes ultra debitum, ut exempla docent, nitimur in vetitum.
Disce morem et errorem, fac et tu similiter!
Hac in vita nichil vita, vive et non aliter! ...
Quod vis aude, dolo, fraude, et potestas punctorum!
Nil vitandum credidi. Mundo gere morem! Vere mos gerendus Taydi.
Legi nichil sit astrictum, iuri nichil sit addictum!
Sancciatur hoc edictum tibi: Ubi virtus est delictum, Deo nichil est relictum ibi.

[Run to the sound of money calling: a pleasant invitation!
We all have a secret lust for the forbidden, even though we know we shouldn’t.
Learn, then, how to fool people. Just do it!
Deny yourself nothing in this life and live like the rest of us. ...
Dare everything, even if you use trickery, fraud, 4-color litho termsheets, and glitzy PowerPoints.
Leave nothing out. Pump and dump! That’s my credo: let the gullible bastards enrich you!
You have no need to adhere to the law, and no need to worry about justice.
Let this edict be holy to you: Where virtue is a crime, there is no place for God.]”

O varium Fortune lubricum, dans dubium tribunal iudicum,
non modicum parans huic premium, quem colere tua vult gratia
et petere rote sublimia: dans dubia tandem prepostere
de stercore pauperem erigens, de rethore consulem eligens.

[O Fortune, changing and unstable, your tribunal and judges are also unstable.
You prepare huge gifts for him who you would tickle with favors as he arrives at the top of your wheel.
But your gifts are unsure, and finally everything is reversed:
you raise up a poor man from his filth and the insufferable bullshitter then becomes a consul.]”

[Note the innovative 12th Century semicolon! ↑ ]

Saturday, December 4, 2010

|| Eye Candy + Ear Candy || ≤ || Eye Candy || + || Ear Candy ||

Burtner’s ‘A’aa’, Grace Lai, flute, and Michael Abrams, clarinet

Grace Lai (flute) & Michael Abrams (clarinet) perform Matthew Burtner’s ‘A’aa’ at KcEMA event at La Esquina in Kansas City (03-DEC-2010)

H ow much information is carried in [neural] spike trains? Should we use the discrete theory or the continuous one? Spike times are not discrete, and discrete calculations don’t seem to give satisfactory answers. But, on the other hand, the continuous theory assumes a continuous space, and, from the available evidence, that is clearly too strong an assumption to be valid. What, then, is the [mathematical, topological, metric] space to which spike train phenomena belong? While it might be possible to define the sum of two spike trains by simple linear superposition, it isn’t at all obvious how to define the difference. There is no reason to expect spike trains to be Euclidean. For example, with regard to color perception, MacAdam ellipses in color space are wildly non-Euclidean.”
— Conor Houghton, Trinity College, Dublin.

T he acoustic and optic stimuli we received at the KcEMA event held last night at La Esquina in Kansas City were intense, sensorially immersive, emotionally evocative, and thoroughly satisfying in terms of their well-crafted dramatic arcs, accessibility, and comprehensibility. The seven works performed were selected from among 120 compositions that were submitted by composers from around the world, in response to KcEMA’s call-for-scores last Spring.

Elainie Lillios (composer), Bonnie Mitchell (visual artist) – “2BTextures”: 2-movement work of abstract animation “takes the audience on an integrated sonic and visual journey into a surrealistic environment influenced by Nature.” This is an edgy, edgy piece with extensive, dramatic use of surround-sound spatial movement of sound, around the Mackie speaker array that was deployed around the perimeter of the audience seating area. The computer-generated visual displays were very high-dimensionality animations, with many tens of thousands of dynamic objects projected in motion at each moment.
Bret Battey (composer, videographer) – “Sinus Aestum”: inspired by the eponymous plain on the Moon’s surface, smooth and dark, “articulated by threads of white dust, like the tips of flowing waves.” Music and video sequences are propelled by algorithmic processes that sample the digital imagery of surface topographic XYZ structures of this lunar plain. It reminds me of ‘Swarm’ software, with autopoiesis and phase-transitions generated by adaptive networks of communicating processes, much like nonlinear reaction-diffusion equations in statistical physics and chemistry, such as the Belousov-Zhabotinsky reaction and other processes in non-equilibrium thermodynamics. Composer as Dawkinsonian “blind watch-maker” impersonal God, initializing the universe and letting Creation auto-unfold as it may. This is utterly phenomenal and without doubt one of the most elegant unifications of light and music I have so far had the pleasure to experience. Bravo!
Matthew Burtner (composer) – “A’aa”: includes field recordings of lava flows and associated sounds emitted by an active Guatemalan volcano, and expresses deep ecology at a primeval, violent, chaotic, low frequency-spectrum, butt-thumping level via the Mackie SRS1500 subwoofer—convincingly conveying the notion that human affairs are puny compared to stochastic geophysical mechanical processes: not only beyond our control but largely beyond the reach of human technologies even to monitor or measure or predict. Burtner’s Nature is uncaring; however, it is not malevolent. It does not wreak shock and awe on all sentient life-forms, human and otherwise. Instead, the shrieks and rumblings of the Earth pushing viscous molten rock are surprisingly benign; nothing is imminently about to explode; this Guatemalan volcano is somewhat like standing very close to a powerful waterfall that is not going anywhere and is not going to kill us. The lava cools, creating solid crusts, and these smash together under the pressure of still-molten material behind them, generating breaking, shattering sounds. [I very much liked the percussionist, mashing fist-sized lava rocks together. The miked grating, smacking sounds of these added high-frequency effects on top of the thundering volcano sounds. Grace Lai’s flute and Michael Abrams’s clarinet, both playing long, sustained notes with pitch-bending and harmonics rounded out this ecoexperience, complementing the timbres of the realtime volcano sounds.]
Jeffrey Hass (composer), Elizabeth Shea (choreography) – “Magnetic Resonance Music”: composed after his having an MRI exam, during which he “focused on bizarre, strident, extremely loud noises and complex rhythms the machine was making.” The world according to Hass has humans as guinea pigs, to whom things are done or happen passively while doctor-priests tell you to hold perfectly still. Shea’s choreographed movements are wonderful counterparts to Hass’s impulsive quasi-chaos syncopated music. Very cool!
Christopher Burns (composer) – “Sawtooth”: mash-up of elements of visual performance and sound-art. Instead of a personal sensor-area network with transducers capturing biomechanics signals from a live performer’s limbs and trunk (3-axis accelerometers, gyros, joint goniometer angles, etc.), Burns uses the video camera on the LCD monitor of his laptop computer to capture the motions of his arms and torso and hands, which he moves Theremin-style . Scene-recognition, edge-detection, and vector velocity computations from the realtime video image datastream of motions of the performer captured from the camera are translated in software and converted into both music and visual animation. The gestures are transformed into a rich palette of pitch set and crescendo/decrescendo and articulation and other motifs. Simultaneously, the gestures yield an interesting range of optical and animation effects, projected on the walls of the performance space. The spatial positions and colors and intensities and sizes (scale) where newly ‘launched’ animation objects appear depend on the position and speed and direction as well as ‘open-hand/closed-hand’ morphology of gestures that Burns makes with his hands. The result is a truly beautiful, cohesive integration of sound and light. [Just as with the recent ‘Faster Than Sound’ event at Aldeburgh, there are issues regarding our less-than-optimal notational idioms for scoring complex computer/electronic music – video/light-show compositions, to sufficiently specify what comes precisely when and specify interfaces for multiple disparate acoustic and optical effects in technology-interoperable, manufacturer-independent ways – so as to facilitate future rehearsals and performances by persons other than the composer/video artist/dancer(s) and on the equipments of future decades when the computers and other devices and patches we now have are long-since obsolete.]
Robert Ratcliffe (composer) – “Phoenix”: repeated resurrection from sonic ashes “explores the possibility of combining characteristic features of synthetic‐driven electronic dance music genres such as acid house and techno” with elements of instrumental and electroacoustic composition. I am reminded of the sounds that titanium robot insects make during the raves that precede their exuberant mating season. This thing is absolutely danceable—very, very nice.
Mike McFerron (composer) – “Prelude to You Brought This On Yourself”: sonically explores the physical and emotional abuse experienced by an openly homosexual youth, and “attempts to comment on a human collective intolerant of an individual voice, who is not asking to be understood or even heard, but simply allowed to exist.” The tintinnabulations of small bells are synchronized with images of people that flash in front of us, accompanied by short voice-over recordings, mostly of anti-gay hate-speech by conservative religious figures. This is a deeply moving, powerful testament to the courage and resilience of those who are harmed—be prepared to be moved to tears as you listen and watch: no mere electronic music or multimedia installation work, it is a galvanizing, effective example of art as political intervention to bring about a more just society.

Battey—‘Sinus Aestum’

W hy do light shows combined with music affect us in ways that are substantially different from either stimulus taken separately? Are there features of dynamic light displays that, when designed and synchronized with music, might optimally stimulate our senses and enhance the depth of our reception of the music?

I s there a point of “sensory overload” or “diminishing returns” as regards multi-sensory stimulation to accompany music? Conversely, why do periods of silence or darkness that sometimes arise in electronic music / lightshow events cause hallucinatory acoustic and optical experiences? How might composers understand and leverage these neurophysiologic phenomena to better advantage, expressively?

M ight there in the future be implantable prosthetic devices—or legal, safe, and effective “performance-enhancing medications” (esp. glutamatergic ones or GABA-ergic ones, to modulate corticofugal transmission)—that could further enhance or extend the scope of these tandem multi-sensory experiences?

W hen I fly on long trans-oceanic flights and listen to my iPod, my perceptions of music are distorted, sometimes in interesting, revelatory ways. How, if at all, would combinations of music and light in zero-gravity space environments differ? Could space-tourism include specially-composed music and accompanying light displays that would capitalize on the sensory biophysics anomalies up there, to produce an extraordinary kind of transcendence for the travelers?

M ight electroacoustic music-light compositions in the future be composed so as to be more effective for music therapy purposes, compared to current conventional “music-only” music therapy?

H ow do the experiences that people with autism-spectrum disorders have of light-sound compositions differ from others’ experiences?

T hese questions occurred to me last night as I listened to the performances of electroacoustic and computer-based compositions at La Esquina in Kansas City. (The same questions had dogged me when I attended last month’s ‘Faster Than Sound’ event in Snape.)

Burns – ‘Sawtooth’

N eural coding has traditionally been assumed to be one of rate-coding: the stronger the stimulus, the more action-potentials per second that a sensory neuron transmits, and the stronger the perceived sensation is.

H owever, it’s now known that in various sensory systems there is ‘sparse temporal neural coding’. The timing and univariate temporal pattern of action-potentials and sequences of clusters of them in a single neuron itself carries information. The bivariate or multivariate temporal pattern of concurrently-incident action-potentials in multiple neurons, which may perhaps be in different sensory pathways (such as acoustic nerve and optic nerve pathways, thalamic pathways, cortical pathways, etc.) may likewise carry [different] information.

T he processing of sensory information by the brain is difficult to understand, in part because of complex interconnections between the sub-cortical and cortical areas. connections between the thalamus and the cortex in the brain are reciprocal, with information carried both in “feed-forward” [peripheral nerves to thalamus to cortex] and “feed-back” [cortex to thalamus] directions. Sensory signals reach the cerebral cortex after having traversed many synapses along multiple pathways. Acoustic and optical signals interact in the thalamus and possibly elsewhere, in both mutally excitatory and mutually inhibitory ways.

C onor Houghton at Trinity College, Dublin, has recently examined spectro-temporal receptive fields and filter functions in studies of the neurophysiology of bird song, using analytic formalisms of van Rossum metrics and non-Euclidean spaces. Useful, I think, for human music analysis, and not just of multi-sensory music-visual works...

A nd Stephen Coombes’s and Paul Bressloff’s edited volume (link below) covers how the patterns of spiking activity provide a substrate for the encoding and transmission of information, that is, how do neurons compute with spikes? It is likely that an important element of both the dynamical and computational properties of neurons is that they can exhibit bursting, which is a relatively slow rhythmic alternation between an active phase of rapid spiking and a quiescent phase without spiking—which is altered by “cross-talk” (statistical cross-correlations) between the spiking patterns evoked by concurrent stimulation by music and light.

W ith regard to the ‘sensory overload’ question, there is a fair amount of recent research that is germane to this. In mathematics, the triangle inequality is a defining property of norms and measures of distance. This property must be established as a theorem for any function proposed for such purposes for each particular space. For example, the triangle inequality holds for spaces such as the real numbers, Euclidean spaces, L^p spaces (p ≥ 1), and inner-product spaces. Maybe it also holds for multidimensional perceptual spaces, such as ones involving simultaneous stimulation by sound and light.

E ven if these are one-of-a-kind experiences never to be quite the same twice, and even if the communication impact of multisensory stimulation is subadditive in terms of quantitative neurophysiology and biophysics, the qualitative expressive and aesthetic result of any particular performance can nonetheless be really, really wonderful. Congratulations to each of these composers/artists/performers on these fine compositions and ‘sensorially whelming’ performances at KcEMA!

M usical Ecoacoustics embeds environmental systems into musical and performance structures using new technologies. Ecoacoustics derives its musical procedures from abstracted environmental processes, remapping data from the ecological into musical domain. It draws on techniques of sonification, acoustic ecology and soundscape composition (e.g, Truax, Westerkamp, Keller and others). The data from nature may be audio information (from wind or ocean waves, for example), or it may be a signal produced from some measurable parameter such as temperature timeseries, geological change or seismic data, astrophysical data, and so on. Going beyond mere direct sonification, the composer develops a syntax on the basis of the recorded natural processes, and creates new patterns conforming to this syntax.”
— Matthew Burtner on ecoacoustics.