Upcoming Photo Show

As casually mentioned on a recent post, I have an photo show coming up next week here in San Francisco. Here is the formal info:

Tuesday, March 22 at 4:00pm – April 22 at 1:00pm
Philz Coffee
4023 18th St
San Francisco, CA

Solo show of photographs by Amar Chaudhary on the wall of Philz Coffee in the Castro. The theme centers on graffiti and urban scenes from the Bay Area, New York and Shanghai.

The photos go up on Tuesday March 22. No formal opening per se, but I do expect to be there in the afternoon and evening if you’d like to drop by!

They will remain up for about the month during regular business hours thereafter (6AM-8:30PM weekdays, 7AM-8:30PM weekends).

It’s going to be relatively small, about 8 pieces.  At least half of them have appeared in small form on this site over the past couple of years.

A bit of good news: Japan’s “Cat Island”

Last weekend we mentioned Tashirojima, Japan’s “Cat Island”. The island is populated by perhaps thousands of cats and 100 or so elderly human residents. The fear at first was that the island, right near the epicenter of the earthquake and tsunami, was lost. This week, we saw this article Discovery News reporting that the island survived!

Tashirojima, otherwise known as Japan’s “Cat Island” due to its numerous feline inhabitants, is intact after the recent devastating 9-magnitude earthquake and resulting tsunami, according to Japan Earthquake Animal Rescue and Support. However, like so many others devastated by the disaster, both the human and feline residents of the island need help.

They quote the group Japan Earthquake Animal Relief, which reported the news on their Facebook page:

Just to give everyone an update on Tashirojima, the cat island. The people and cats are safe but short of food. A volunteer looked into transporting food by boat, but there is too much debris in the water. A helicopter is the only way. The army will probably get a helicopter ready soon so we are looking into the possibility of asking them to take cat food too.

Additional information via this blog post, along with some beautiful photos.

It is a rare bit of good news in a disaster that seems to be getting worse every day, especially now with the nuclear disaster. It could be another round of danger for this island and extraordinary number of people in coming days.

You can support the efforts of Japan Earthquake Animal Relief and see more information on Facebook. They are a coalition of at least two animal-relief organizations working together. World Vets also has a fund for disaster relief in Japan.


I didn’t think it would be possible to make this a “Cat and Synthesizer” post, but I did read via matrixsynth, that is matching donations to SXSW’s Japan relief fund with subscriptions. (Puremagnetik is a subscription service for sound/instrument packs for use with Ableton Live! and other software environments.)

Pi Day, 2011 (with Music)

Every year, we at CatSynth join numerous other mathematics enthusiasts, geeks and otherwise eccentric characters in celebrating Pi Day on March 14.

March 14 is notated in the U.S. and some other countries as “3-14”, which evokes the opening digits of π (pi). Although the date representation is a very arbitrary connection to the number, we also recognize that the representation of π in decimal digits is arbitrary, an accident of human beings having ten fingers. So this year we are exploring the representations in binary and other related bases.

To represent an integer in binary, one of course presents it as a sum of powers of two, e.g., 11 = 8 + 2 + 1 or 1011 in binary. But one can also represent fractional numbers in binary. Digits to the right of the decimal point represents powers of one-half. So the binary number 0.11 is 1/2 + 1/4, or 3/4. Fractions like 1/3 can be represented with repeating digits as 0.010101…, much like in base ten. And this concept can be extended to irrational numbers like π.

The author of this website has calculated 32768 digits of pi in binary. We reprint the first 258 below:

11.
00100100 00111111 01101010 10001000 10000101 10100011 00001000 11010011 
00010011 00011001 10001010 00101110 00000011 01110000 01110011 01000100 
10100100 00001001 00111000 00100010 00101001 10011111 00110001 11010000  
00001000 00101110 11111010 10011000 11101100 01001110 01101100 10001001 

The initial “11” represents the 3 in π, and the remaining digits begin the non-integral portion. Like in the decimal representation, the binary representation continues forever with no particular pattern. While not as iconic or memorable as the decimal representation 3.14159…, there is something about the binary representation that makes it seem more universal, i.e., based on fundamental mathematical truths rather than a quirk of human anatomy. For me, the binary representation also lends itself to musical ideas. And for the occasion, I have created a couple of short synthesized pieces representing the 32768 binary digits of pi. In the first example, each binary digit represents a sample. The “1” represents full amplitude and the zero represents no amplitude (silence). The result, which at 44.1kHz sample rate is less than one second long, can be heard below.

The random configuration of digits sounds like noise, and more specifically like white noise, suggesting something approaching uniform randomness at least to human hearing. I also made an example slowed down to a level whether the individual samples became musical events. I find this one quite interesting.

With some additional refinement (and may some more digits to extend the length), it could certainly stand alone as a composition.

One interesting counterpoint to the notion that digits of pi form white noise is a conjecture related to its representation in hexadecimal (base 16), which as a power of two is “closer” to binary and seemingly less arbitrary than decimal. From Wolfram MathWorld, we find the following “remarkable recursive formula conjectured to give the nth hexadecimal digit of π – 3 is given by where is the floor function:

The formula is attributed to (Borwein and Bailey 2003, Ch. 4; Bailey et al. 2007, pp. 22-23). If true, it would add some sense of order to the digits, and thus additional musical possibilities.

Weekend Cat Blogging 301: A Sad Day

March 11 was a sad day.

It is with a heavy heart that we say goodbye to our friend Mickey.

As mentioned earlier this week, he fell very ill and passed away on Friday. He (through his mom) first visited us in late 2007, and they have been regulars on our site ever since, as likely to comment on experimental music shows and photography as Luna’s feline antics. And in turn, we enjoyed getting to know them better through their site. Our thoughts go out to Mom Nancy and the rest of the family today.


We have been closely following the tragic events in Japan after the earthquake and tsunami. Images such as these are heartbreaking, and our thoughts are with the people of Japan right now. While every year brings multiple huge disasters, when it happens somewhere you have visited or affects people you know, it hits harder.

Our friends at Cats of Wildcat Woods have compiled a list of relief organizations. The Red Cross is always a good place to start, and now you can donate via text messages.

There is no information currently on Tashirojima, or “Cat Island”, which is off the eastern coast of Japan in Miyagi Prefecture, near epicenter of the earthquake and tsunami, but the fear is that the island was lost.


Weekend Cat Blogging #301 is hosted by Pam at Sidewalk Shoes.

The Carnival of the Cats will be up this Sunday at Two Little Cavaliers.

And the Friday Ark is at the modulator.

Music in Motion at the Luggage Store Gallery

I will be attending and participating in this performance tonight at the Luggage Store Gallery. The evening will unfold as an interaction among Laurie Amat, the Cornelius Cardew Choir and the Free Reed Vibrating Society. The two ensembles will trade off pieces, with Laurie Amat performing a solo in between.

In between performances by the Cardew Choir I may be live tweeting @catsynth. As long as it doesn’t seem too tacky.


The Luggage Store Gallery
1007 Market Street @ 6th
San Francisco, CA

Music in Motion focuses on the ongoing dialogue between space and sound. The sound helps define the space. The space helps define the sound.

Space/Sound investigators are:
Laurie Amat – solo voice and movement

Cornelius Cardew Choir
Tom Bickley – director and co-founder
Eric Theise, Sarah Rose Stiles, Dean Santomieri
Nathan Rosquist, Kalonica McQuesten, Marianne McDonald
Bob Marsh (co-founder), Cathryn Hrudicka, Ryk Groetchen
Tom Duff, Amar Chaudhary, Diane Caudillo, Nancy Beckman
Anne O’Rourke

Free Reed Vibrating Society
Bob Marsh – president, melodica
Sandra Yolles – melodica
Rent Romus – accordion
CJ Borosque – melodica
Melissa Margolis – accordion
David Slusser – accordion
Diane Caudillo – melodica
Juliayn Coleman – harmonica
Suki O’Kane – accordion, melodica
Michael Zelner – harmonica
Tom Bickley – melodica
Jim Ryan – melodica

Object as Multiple: 1960-2000, Stephen Wirtz Gallery

Today we look at a particularly fun exhibition Object as Multiple: 1960-2000 at the Wirtz Gallery here in San Francisco. It presented examples of multiples, pieces other than traditional prints or casts that could theoretically be repeated ad infinitum – though in reality they are limited editions – by many of the well-known artists of the mid 20th century.

[Sol Lewitt. Cube Without a Cube, 1996.  Edition of 42.  All images courtesy of Stephen Wirtz Gallery.]

One of the things that made this exhibition fun was identifying the pieces by these artists without labels, and then seeing if one’s guesses were in fact correct. Some were quite easily recognizable. For example, Donald Judd’s Untitled (1971) was essentially a single box from his minimalist stacked-box pieces that appear in SFMOMA and elsewhere. Similarly, I could easily pick out Sol Lewitt’s Flat Topped Pyramid and Cube without a Cube with their geometric construction, again very minimalist. I may not have been able to pick out Man Ray’s L’ Indicateur without some hints.

[Donald Judd. Untitled, 1970.  Edition of 50.]

[Sol LeWitt. Flat Topped Pyramid, 2005. Edition of 6.]

[Man Ray, L’ Indicateur, 1969.  Edition 1 of 25.]

These relatively small pieces, along with John Cage’s Not Wanting to Say Anything About Marcel provided a chance to commune with some my modernist heroes from both visual art and music in a relatively intimate setting.

[John Cage. Not Wanting to Say Anything About Marcel, 1969.  Edition of 125.]

With Cage’s piece in particular, there is an integration of music, text and visuals in a compact object, along with his dry sense of humor. Sol Lewitt’s pieces have that simple comforting geometry (you can see larger examples in , but there is again a bit of humor and play in the title “Cube without a Cube.”  Larry Bell’s Untitled (ca 1970) has a similar geometric quality, but projected onto two-dimensions.

[Larry Bell. Untitled (ca 1970).  Edition of 150.]

Another piece that referenced music was Claes Oldenburg’s Miniature Soft Drum Set. Think of it as a “deflated drum set,” one part surreal, one part rather cute:

[Claes Oldenburg. Miniature Soft Drum Set, 1969. Edition of 200.]

It’s rare that I would describe a drum set as “huggable.” (Though of course there is no hugging of the artwork allowed at the gallery.)  It is also a strong contrast, with its soft edges, to the geometric and minimal works in the exhibition.

A few pieces pushed the idea of the multiple into everyday objects. Jim Hodges’ Everything and Nothing is a series of clocks representing the planets of the solar system. On one level, this is simply a set of themed clocks that one could imagine buying at a store (I like how Jupiter is a digital clock). But it is not truly mass-produced, as there are only 12 sets.

[Jim Hodges. Everything and Nothing, 1999.  Edition of 12.]

Vito Acconci’s Park Up a Building is a puzzle of an architectural photograph. Roy Lichtenstein’s Shirt is, well, a shirt (though I could see it being nice to wear for a music performance.)

The exhibition will remain on display through March 12.


Coincident with this exhibition, the gallery was displaying photography from past exhibitions. I particularly liked Catherine Wagner’s Ode to Yves with its array of deep blue lightbulbs – it was part of a 2007 exhibition entitled A Narrative History of the Lighbulb.

[Catherine Wagner. Ode to Yves, 2006.]

Another piece that got my attention was Alec Soth’s Grand Twin Cinema, Paris, Texas, 2006 from an exhibition entitled The Last Days of W.

[Alec Soth.  Grand Twin Cinema, Paris, Texas, 2006.]

The photograph of a classic downtown street seems rather empty (though the business seem open), a little worn out, perhaps illustrative of the state of the country during the last year of George W Bush’s presidency. But the stark quality is also what makes it attractive as an image.

[All images in this article courtesy of Stephen Wirtz Gallery.]