Outsound Music Summit: Vibration Hackers

The second concert of this year’s Outsound Music Summit, entitled “Vibration Hackers”, featured electronic musical experimentations from Stanford’s CCRMA and beyond. It was a sharp contrast to the previous night in both tone and medium, but had quite a bit to offer.

The concert opened with #MAX, a collaboration by Caitlin Denny on visuals, Nicole Ginelli on audio, and Dmitri Svistula on software development. It was based on the ubiquitous concept of the hashtag as popularized by Twitter. Audience members typed in suggested terms on a terminal set up in the hall. The terms we then projected on the screen and used to search online for videos, audio and textual materials to inform the unfolding performance. Denny used found videos as part of her projection, while Ginelli interpreted results with processed vocals.

#MAX

The idea was intriguing. I would have liked to see more explicit connection between the source terms and audio/video output – perhaps it was a result of the projection onto the distorting curtain instead of a flat surface, but the connection wasn’t always clear. It would have also been fun to allow audience members to input terms from their mobile phones via Twitter. But I applaud the effort to experiment artistically with social networking infrastructure and look forward to seeing future versions of the piece.

Next was a set of fixed-media pieces by Fernando Lopez-Lezcano, collectively called Knock Knock…anybody there? Lopez-Lezcano is a master of composition that uses advanced sound spatialization as an integral element, and these pieces presented a “journey through a 3D soundscape”.

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[Photo: PeterBKaars.com.]

The result was a captivating immersive and otherworldly experience with moving sounds based on voices, sometimes quite intelligible, sometimes manipulated into abstract wiggling sounds that spun around the space. There was also a section of pop piano that was appropriately jarring in the context which gave way to a thicker enveloping sound and then fades to a series of whispers scattered in the far corners of the space. The team from CCRMA brought an advanced multichannel system to realize this and other pieces, and the technology plus the expert calibration made a big different in the experience. Even from the side of the hall, I was able to get much of the surround effect.

The next performance featured Ritwik Banerji and Joe Lasquo with “Improvising Agents”, artificial-intellgience software entities that listen to, interpret, and the produce their own music in response. Banerji and Lasquo each brought their own backgrounds to the development of their unique agents, with Banerji “attempting to decolonize musician-computer interaction based not he possibilities that a computer is already intelligent” and Lasquo applying his expertise in AI and natural language processing to musical improvisation. They were joined by Warren Stringer who provided a visual background to the performance.

Joe Lasquo and Ritwik Banerji
[Photo: PeterBKaars.com.]

As a humorous demonstration of their technology, the performance opened with a demo of two chatbots attempting to converse with one another, with rather absurd results. This served as the point of departure for the first piece, which combined manipulation of the chatbot audio with other sounds while Banerji and Lasquo provided counterpoint on saxophone and piano, respectively. The next two pieces, which used more abstract material, were stronger, with deep sounds set against the human performances and undulating geometric video elements. The final piece was even more organic, with subtle timbres and changes that came in waves, and more abstract video.

This was followed by Understatements (2009-2010), a fixed-media piece by Ilya Rostovtsev. The piece was based on acoustic instruments that Rostovtsev recorded and then manipulated electronically.

Ilya Rostovtsev
[Photo: PeterBKaars.com.]

It began with the familiar sound of pizzicato strings, that gave way to scrapes and then longer pad-like sounds. Other moments were more otherworldly, including extremely low tones that gradually increased in volume. The final section featured bell sounds that seemingly came out of nowhere but coalesced into something quite serene.

The final performance featured the CCRMA Ensemble, which included Roberto Morales-Manzanares on flute, voice and his “Escamol” interactive system, Chris Chafe on celletto, John Granzow on daxophone and Rob Hamilton on resonance guitar. Musical creations were a major part of this set. Chris Chafe’s celletto is essentially a cello striped down to its essential structure and augmented for electro-acoustic performance. The saxophone is based on a bowed wooden element where the sound is generated from friction. The Escamol system employed a variety of controllers, including at one point a Wii.

CCRMA Ensemble
[Photo: PeterBKaars.com.]

The set unfolded as a single long improvisation. It began with bell sounds, followed by other sustained tones mixed with percussive sounds and long guitar tones. The texture became more dense with guitar and shaker sounds circling the room. The celletto and daxophone joined in, adding scraping textures, and then bowing sounds against whistles. In addition to the effects, there were more idiomatic moments with bowed celletto and traditional flute techniques This was truly an experimental virtuosic performance, with strong phrasing, textural changes and a balance of musical surprises.

I was happy to see such a strong presence for experimental electronic technologies in this year’s Summit. And there was more electronics to come the following evening, with a very different feel.

Outsound Music Summit: Touch the Gear Expo

The 12th Annual Outsound Music Summit began this past Sunday, opening as always with the Touch the Gear Expo. Musicians and sound artists from the Bay Area and beyond were on hand with their musical devices and inventions for the public to observe and try out. I participated this year with two technological extremes: soft synths on an iPad, and a full two rows of Eurorack format analog modules.

iPad and Eurorack modular

Both offerings were quite popular, eliciting curiosity from visitors of all ages.

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[Photo: PeterBKaars.com.]

There were quite a few analog synthesizers on hand, including a vintage Serge modular courtesy of Synthesizerman (aka Doug Linner).

Synthesizerman and Serge Modular
[Photo: PeterBKaars.com.]

One of the more intriguing analog synths I encountered was this creation by Andy Puls.

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The circular pattern represents a step sequencer controlling an internal sound generator. Conductive pegs can be moved around on the bars to change pitches and other parameters. There are also knobs as well. The overall geometry, control design and lights made this a visually appealing instrument.

Nick Wang also demonstrated some custom analog boxes with controllers, oscillators and a VCF.

Nick Wang synth demo

Fernando Lopez-Lezcano demonstrated his elaborate homemade analog synthesizer. I have had the privilege of hearing him play it in a formal performance.

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[Photo: PeterBKaars.com.]

Matt Davignon demonstrated his devices for working with fixed-media sources, a bit of a preview of what we can expect for Friday night’s PMOCOTAT performance.

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Acoustic creations, in particular sounds from natural sources, were a common theme this year as well. Cheryl Leonard demonstrated her expertly tuned instruments made from stones, bones, shells and wood gathered at the extremes of the earth. She also demonstrated her virtuosity with using these elements together, such as generating rhythms from a series of bones passed over the shells.

Cheryl Leonard
[Photo: PeterBKaars.com.]

David Samas was also on hand with his musical creations from natural sources found here in northern California.

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Missing from the picture above is his tuned aluminum rod, from which one can get quite a powerful sound with a well-rosined hand. I had the opportunity to try it out myself.

Bryan Day presented his instruments made from found objects, including the tape measures featured prominently in the image below. Other sources included springs and metal rods. His creations are quite ergonomic and easily to play, putting unusual sources into compact and intuitive arrangements.

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Horaflora combined acoustics and small electronics in a couple of lively offerings, including drum heads excited by magnets. I heard him play this in a program several months ago.

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Horaflora also demonstrated exciting natural acoustic elements atop a subwoofer connected to an iPhone synth. You can see and hear a bit of my attempting to demonstrate these elements together with him in the following video:


David Molina (aka “Transient”) also blended acoustic and electronic ideas. He had a variety of small instruments and sound sources on hand, which he used to generate source material for complex loops and textures controlled in real time via Albeton live.

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In his own words, this was only “about half of what he will be using in his performance on Friday.”

Tom Nunn, a prolific inventor whom I interviewed in 2012, was once again presenting his creations. This time it was an exceptionally colorful set of his Skatchboxes.

Tom Nunn skatchboxes
[Photo: PeterBKaars.com.]

There were others presenting as well, and unfortunately, I did not have time to see everyone and also attend to me own station. But I hope to see more of all the participants in more musical settings.

The Outsound Music Summit continues on Wednesday night with the first of the formal concerts, you can see a full schedule here. And of course, you can always follow along with @catsynth on Twitter if you can’t attend in person.

CCRMA Modulations at SOMArts

A few weeks I go, I attended CCRMA Modulations 2011, an evening of live electronic music and sound installations by CCRMA (the Center for Computer Research in Music and Acoustics at Stanford) and special guests at SOMArts in San Francisco. The event was an eight-hour marathon, though I only stayed for about half the time, seeing many of the installations and most of the live-music performances.

The first part of the evening featured sound sculptures from Trimpin and his students at CCRMA. This particular project, the “Boom Boom Record Player” by Jiffer Harriman stuck with me.

The output from the record player is used to drive the electromechanical instruments on the right. I thought the instruments were well crafted – but I thought it was particularly fitting to have a classic Earth Wind and Fire LP on the record player.


[Click image to enlarge.]

Trimpin’s offering featured coin-operated robotic percussion where the drums included just about every model of Apple notebook computer going back to an early PowerBook (and even earlier as I think I espied an Apple IIc).


[Click image to enlarge.]


The live-music portion of the evening with Tweet Dreams by Luke Dahl and Carr Wilkerson. Audience members with Twitter access were encouraged to live-tweet messages to a specific hashtag #modulations. The messages were then analyzed in real time and the data used to affect the music. As I was planning to live tweet from this event anyway via iPhone, I was ready to participate. Of course, inviting audience participation like this is a risky proposition for the artists, as one cannot control what people may say. I will freely admit I can be a bit snarky at times and it came out in some of my tweets. The music was relatively benign, with very harmonic runs of notes – and I exhorted them to “give me something harsh and noisy”. Inspired by another participant, I also quoted lines from the infamous “More Cowbell!” skit from Saturday Night Live, much to the delight of some in the audience. The main changes in the music seemed to be in density, rhythm and some melodic structure, but all within boundaries that kept the sound relatively harmonic and “pleasant.” I would have personally liked to see (as I suggested via Twitter), more complex music, with some noisy elements and more dramatic changes. But the interaction with the music and and the audience was a lot of fun.

The next piece, Sferic by Katharine Hawthorne, featured dance and electronics. It was described as “using radio and movement improvisation to explore the body as an antenna.” The dancers, dressed in black outfits with painted patterns, began the movement to a stream of radio static. The motions were relatively minimalist, and sometimes seemed strained. Gestures included outstretched arms and fingers pointing, with Hawthorne walking slowly as her dance partner Luke Taylor ran more quickly. Rich, harmonic music entered from the rear channels of the hall, and dancers moved to being flat on the ground. The static noise returned, but more crackly with other radio-tuning sounds, then it became a low rumble. The dancers seemed to be trying very hard to get up. Then they started pointing. The music became more anxious, with low percussive elements. The dance became more energetic and active as the piece came to a close.

This was followed by Fernando Lopez-Lezcano performing Dinosaur Skin (Piel de Dinosaurio) a piece for multi-channel sound diffusion, an analog synthesizer and custom computer software. The centerpiece was a custom analog synthesizer “El Dinosaur” that Lopez-Lezcano build from scratch in 1981.

The instrument is monophonic (but like most analog synthesizers, a very rich monophonic), multiplied for the purposes of the performance by audio processing in external software and hardware. The music started very subtly, with sounds like galloping in the distance. The sounds grew high in pitch, then descended and moved across the room – the sense of space in the multichannel presentation was quite strong. More lines of sound emerged, with extreme variations in the pitch, low and high. The timbre, continually changing, grew more liquidy over time, with more complex motion and rotation of elements in the sound space. Then it became more dry and machine like. There was an exceptionally loud burst of sound followed by a series of loud whistles on top of low buzzing. The sounds slowed down and became more percussive (I was reminded as I often am with sounds like this of Stockhausen’s Kontakte (II)). Then another series of harsher whistles and bursts of sound. One sound in particular started the resonant quite strongly in the room. Overall, the sound became steady but inharmonic – the timbre becoming more filtered and “analog-like”.

The final performance in this section of the evening featured Wobbly (aka Jon Leidecker) as a guest artist presenting More Animals, a “hybrid electronic / concrete work” that combined manipulated field records of animals with synthesized sounds. As a result, the piece was filled with sounds that either were actual animals or reminiscent of animal sounds freely mixed. The piece opened with pizzicato glissandi on strings, which became more wailing and plaintive over time. I heard sounds that either were whales and cats, or models of whales and cats. Behind this sounds, pure sine tones emerged and then watery synthesized tones. A series of granular sounds emerged, some of which reminded me of human moaning. The eerie and watery soundscape that grew from these elements was rich and immersive. After a while, there was a sudden abrupt change followed by violent ripping sounds, followed by more natural elements, such as water and bird whistles. These natural elements were blended with AM modulation which sounded a bit like a helicopter. Another abrupt change led to more animal sounds with eerie howling and wind, a strange resonant forest. Gradually the sound moved from natural to more technological with “sci fi” elements, such as descending electrical noises. Another sudden change brought a rhythmic percussion pattern, slow and steady, a latin “3+2+2” with electronic flourishes. Then it stopped, and restarted and grew, with previous elements from the piece becoming part of the rhythm.


After an intermission, the seats were cleared from the hall and the music resumed in a more techno dance-club style and atmosphere, with beat-based electronic music and visuals. Guest artists Sutekh and Nate Boyce opened with Bands of Noise in Four Directions & All Combinations (after Sol LeWitt). Glitchy bursts of noise resounded from the speakers while the screens showed mesmerizing geometric animations that did indeed remind me a bit of Sol LeWitt (you can see some examples of his work in previous posts).

Later in the evening Luke Dahl returned for a solo electronic set. It began calmly with minor chords processed through rhythmic delays, backed by very urban poster-like graphics. Behind this rhythmic motif, filtered percussion and bass sounds emerged, coalescing into a steady house pattern, with stable harmony and undulating filtered timbres. At times the music seemed to reach back beyond house and invoke late 1970s and early 1980s disco elements. Just at it was easy to get lost listening to Wobbly’s environmentally-inspired soundscapes, I was able to become immersed in the rhythms and timbres of this particular style. The graphics showed close-ups of analog synthesizers – I am pretty sure at least some of the images were of a Minimoog. I did find out that these images were independent of the musical performance, and thus we were not looking at instruments being used. I liked hearing Luke’s set in the context of the pieces earlier in the evening, the transition from the multi-channel soundscapes to the glitchy noise and to the house-music and dance elements.

I was unfortunately not able to stay for the remaining sets. But overall it was a good and very full evening of music and technology.