
Furthermore, please remember that the sound samples are just samples--not highlights, not the pieces, just out of context highly compressed excerpts that hang together in ways that give a sense of what one might expect to hear from various tracks. It's important to get beyond confusing the samples for the pieces. If you are at all interested in the quality of music, listening to a CD via a good audio system gets your ears reasonably close to the original music. In any case, avoid settling for dumbed down audio. The difference between even a decent satellite audio system hanging on the end of a computer and what you would hear from good standalone audio system is like the difference between night and day. Often I hear from young people who've grown up with buds in the ears that they doubt they could hear the difference between mediocre and good audio. My response to them is that now is a good time to educate your ear so you can have a lifelong deeper appreciation of the power and beauty of sound to affect your soul. Much is lost when music is considered no more than a commodity to be squeezed into smaller and smaller storage spaces. Go for the systems that can handle bigger files; they tell better stories.
What follows is a description of the context and process of Metabiosis V. It was taken from my book The Electronic Arts of Sound and Light, published in 1983 by Van Nostrand Reinhold. It's out of print but you should find it in most university libraries. Check it out if you're interested in what performance multimedia was like in the 70s and how it set the stage for today's desktop multimedia scene.
Beginning in the late 1960s, various lines of my personal research began to come together in environmental designs that embodied systems of simulated intelligence. The compositions incorporated sensors and transfer functions that interacted with the external environment in ways analogous to living systems. Inspired by the observation that the greatest number and variety of life-promoting forces are always found at the intersections of matrices -- the meeting of land and water, weather fronts, multiple subcultures living in proximity -- I began work on the Metabiosis Series. The term metabiosis refers to a mode of living in which one organism is dependent on another for the preparation of an environment in which it can live.
The forms of the Metabiosis Series were based on the fundamental principle of the living process, i.e., continual movement created by differences in potential. Healthy natural systems tend to gravitate toward a condition of ideal disorder, a condition that absorbs order from the environment as order-inducing influences of the environment become available in sufficient strength. In such systems absolute equilibrium leads to a condition of absolute repose -- death or nothingness. In contrast, life is marked by exchange, communication, response, selection, assimilation, and change.
Metabiosis V was a collaborative work. It was installed in the Fairchild Chapel on the Oberlin College campus in Oberlin, Ohio. The installation ran for two days. The figure above illustrates the connections between light, sound, and audience-induced airflow.
High-intensity light flows through the aperture of a small wooden box designed by Raetze to cool an 850-watt bulb quietly, soundlessly, by having hot air exit through a light-tight port on the box top, thereby drawing cool air in its wake across the surface of the hot bulb. (No noisy fans.) The light strikes the lenses. A small percentage of it becomes images reflected by the lenses' surfaces onto the side and back walls of the chapel; the images are subjected to the warping effects of traveling along the varying contours of the rectangular space. A large percentage of the light passes through the lenses and is refracted into ever-changing forms on the front wall.
Distributed along 140 degrees of the front wall are six photoresistors (the light sensing part of the interface), each in circuit with a power supply that provides voltage to be varied according to the intensity of the light striking the photoresistor. These voltages travel by cable to the back of the chapel, where they are fed into the remainder of the interface constructed by engineer Robert Faud to communicate from the light forms to the collection of synthesizers which includes a Moog III, a Buchla Electric Music Box, an ARP 2600, and two Putney VCS-3s. The six channels of the interface produce dynamic scalable voltages that can be applied to any voltage controlled sound variable and/or can be used to produce command pulses by adjusting the threshold levels of trigger circuits reading the voltages. The pulses are used to initiate, change the order, or terminate single events or chains of events; they are also used to change the state and position of pulse driven functions. The circuits or patches on the synthesizers are composed to respond to the translated light information in the domains of frequency, timbre, amplitude, ring, and location modulation, as well as to mix events and control their relative durations.
The phrasing of Metabiosis V is directly influenced by audience flow. The mood of the environment ranges from meditative to frenetic; the greater the audience flow, the more agitated the state of the environment. An often recurring macro-phrase structure surfaces during the two-day installation. It begins with a 5 to 10 minute random entrance of the audience that excites the air currents, driving the lenses to produce light images of a frenzied nature, which in turn trigger and create highly complex sound events. A time of complicated sustained activity follows the seating of the audience; then the macro-phrase gradually evolves to quieter levels, though often given a brief activity boost by a random entrance or exit of an audience member. After a period of a half to three quarters of an hour, the macrophrase winds down to a level at which the light images change almost imperceptibly, and the only sounds in the space are soft low-frequency thumpings accompanied by nearly inaudible wavetrains coursing through their assigned quad-location paths. Following a meditative period, the length depending upon the disposition of the audience, a new cycle begins, initiated by the changing audience composition. Sample link.
Metabiosis V is an example of a very early yet completely algorithmic composition. During the late 60s-early 70s I thought of what I was doing as integrated multimedia systems design or interactive environmental design. As you can see, Metabiosis V is what would be called an algorithmic composition or an installation today.
The composition is a performance ritual with no beginning, no middle, no end, and no particular duration other than the length of time an individual wants to spend with it; the audience enters and exits at will and its movement determines the phrasing of the music.
A dark, warm chapel on a cold snowy night in mid-November Ohio. Someone opens the door and warm air rushes out into the night drawing in cold air behind it, creating air currents that spin the large suspended plexiglass lenses shaped by the hands of sculptor Toby Raetze.
7. The Real* Electric Symphony at Old First Church in San Francisco (1975) -- Joining me for this performance were some heavy-weight electronic music practitioners, namely Gordon Mumma, Olly Wilson, and Howard Moscovitz. At the time of this performance Gordon (an electronic music pioneer) was on the faculty of UC-Santa Cruz, Olly (prize-winning electronic music composer) was on the faculty of UC-Berkeley, and Howard (already in his youth a notable electronic music instrument designer) was heading for a lifetime career at Bell Labs designing DSPs that would make their way into all sorts of electronic systems. My "virtual group", The Real* Electric Symphony, was in the 70s what today would be called a "media band" or more precisely, a performance-multimedia band. It was a "virtual group " in the sense that I engaged specific performers for specific gigs from an extensive collection of performance artists with the majority living in the San Francisco Bay Area and others spread across the USA and Europe. In other words, the composition of the R*ES changed according to the requirements and location of the gig; the size of the group ranged from three to as many as thirty performers and in age from 18 to 83 years.
In this example of our work it should be easy enough to hear how intensely this group is involved in creating emergent music -- listening to each other; choosing when and how to enter, where to locate their contribution (foreground, middle-ground, background), and when and how to exit the virtual soundspace. Remember that we are not playing from a score; instead the music is an exercise completely given over to musically responsible freedom. Now I know from many positive experiences that given the right combination of performance artists there is no musical experience more satisfying and inspiring than being a member of real time creative group that somehow balances being harmonious with being surprising, and, again in retrospect, this feels like one of those high times. Bearing in mind that this is the end of a 45-minute set, it seems the baby you hear (commenting on being there) just before the applause begins shares my appraisal. Sample link.
It's just as beautiful inside as it is outside.

8. Shimmer (1973) -- This piece evolved from a series of studies I began in 1967 during my early days of working with music synthesizers. Initially I used a frequency counter to set the pitches for extended chord complexes based on repeating and stacking all the intervals from minor 2nds to major 7ths. From the beginning I experimented with octave displacement, voicing, spectral combinations, durations, and other variables. In the process of tuning the chords I quickly learned that there was a serious disparity between what the book based on the math tells you is supposed to be the correct frequency, and what your ear tells you is actually the correct frequency if you want it to sound "in tune". In a nutshell, the ear is a non-linear transducer and it's a psychophysical fact that one's perception of pitch is influenced by spectrum, amplitude, duration, pitch combinations, and whether it is in the middle of your hearing range or at the extremes. The upshot is that the most efficient way for me to tune chord complexes was to rely on my ear, and to use the frequency counter only to establish the earliest reference pitch. On the surface this piece uses all 12 tones of the equal tempered chromatic scale stacked into perfect fourths but the fact is that I am not using equal temperament because I'm tuning the chord complex by ear. One of the advantages of the analog synthesizer is that oscillator frequencies are infinitely adjustable, so it becomes not only possible but desirable to compensate for the non-linearity of the human hearing system and in the process create chord clusters that are full, rich, and sweet.
I used this music in a number of different pieces. In 1972 it was employed as the score to Paths, the second film in my Lissajous Lives Film Series. Paths is a apt title because in addition to the tuning game, I was playing with the notion of having each pitch define its own path in quad space. Then in 1973 the same system generated this version principally because I committed to collaborating on a large otherworldly multimedia piece with Toby Raetze, an Oberlin College light sculptor, and Brenda Way, a choreographer and director of the Oberlin Dance Collective (a group that, after the westward migration, has been a fixture in the San Francisco dance world for decades). The title Shimmer on a large multimedia piece made more intuitive sense given that context.
At the time I composed this piece the collection of instruments in the main electronic music studio at Oberlin seemed like a multitude of Christmas mornings rolled into one. For a period one of my favorite games was to put every function of every synthesizer to work together simultaneously, in other words, to regard the entire studio as an integrated whole similar to an orchestra. That done would facilitate integrating composer, performer, and conductor. Yes, it was loads of fun. Sample link.
The Oberlin Conseratory main Electronic Music Studio in 1973.
9. Kaleidoscopic Electric Rags (1974) -- This is an excerpt from a day-long realtime composition event in Finney Chapel that functioned as the culmination of my first semester electronic music composition class at Oberlin College Conservatory of Music. There are number of facets to this project. In one sense this is music emerging from an experimental social system (one of the algorithms) in which any one person could be performing with any other person or persons in a duet, trio, quartet, quintet, or sextet at the throw of a die. In preparation the composers were asked to design instruments (patches or circuits) for every synthesizer in the main electronic music studio with the intent of performing them in a real time event at the end of the semester. Throughout the semester we spent our meetings discussing design principles, listening to and discussing the playing of individuals, and exploring random combinations of performers and instruments as rehearsals for the final event. Great care was taken to avoid any filtering by style or personal voice. The Oberlin music community has a phenomenal history of performances; in all musical styles, bar none, the performance standards are exceptionally high. The average age of this group of performers was less than 20 but, as you can hear from the humor and the creative twists, the musicianship is at the top professional level. Two of this group were integral players in The Real* Electric Symphony, James Gillerman in the San Francisco Bay Area and Frankie Mann on tour in Europe. Sample link.
10. Wavesong (1982) -- This music is an example of a very private and personal algorithmic sound environment I lived with for weeks in my home studio at Oberlin in 1974/75. I rented a sensational studio apartment from Oberlin College my last year in residence there. It had a huge great room with high ceilings, a fireplace, and floor to ceiling windows both on the side that bordered the campus and the side that looked out on a lush back yard. My road synthesizer system occupied some of that space and often filled it with Wavesongs generated by algorithms I was exploring based on my studies of cymatics, studies that included the beautiful work of Swiss physicist Hans Jenny. Mostly this environmental design mused with a mind of its own. But occasionally I would sit in the middle of my synthesizers and steer the sounds in a special direction. This is a record of just one of those trips; performances of the algorithm generated a set of pieces. In 1977 I programmed a realization of Wavesong on a solo concert in Rio de Janeiro and invited composer/pianist Jocy de Oliveira (who set up the gig) to play the piano along with my synthesizer work. She recorded our performance and loved the piece so much she made it her own, programming it New York City and beyond using my performance in Rio as the synthesizer part; she also put it on vinyl along with some her pieces. When I was programming it in the mid 1970s the title was unique; today I notice it's an exceedingly popular title. The same holds true for the interest in Cymatics. As Martha would say, those are good things. Sample link.
11. EnufZEnuf (1977), Rigor Mortis Rescue Squad -- This is a recording of just a few minutes from the end of three-hour dance gig we did at choreographer/dancer Margaret Fisher's Cat's Paw Palace for the Performing Arts, by far the best new performance arts venue in the East Bay. The Rigor Mortis Rescue Squad was comprised of five musicians, three from The Future Primitive Art Ensemble of San Francisco (Charles Moselle, David Simons, and William Brown) and two from The Real* Electric Symphony (James Gillerman and myself). We billed the event not as a concert but as a dance, and that attracted the most beautiful collection of young Bay Area dancers you could possibly imagine. (Except for the musicians, not a male in sight.) As you can hear from the sounds and the singing in tongues, the dancers had no qualms about expressing their feelings and joining us in the music making. That's Charlie making the "EnufZEnuf" announcement. The dancers did not want the night to end but we musicians had been playing mostly high energy music for three hours with just a few short breaks and we were definitely ready for some Hun's wonton and noodle soup. Sample link.
To view selected sections of Emergent Music And Visual Music: Inside Studies, Part 1: The Book, click on one of the following:
Contents
Preface
Chapter 1, Emergent Music
Chapter 15, Visual Music Flavors
Acknowledgments
Index
Information on Part 2: The DVDs.
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©1996-2010 Ron Pellegrino and Electronic Arts Productions. All rights reserved.