January 18th, 2006



for the silence, and all that, but it's not been the best of weeks. It's probably just the weather, but I've been stiff and sore and lassitudinous. For example, last Tuesday it took me nine hours to get out of bed and dress. :(

I'm feeling rather better now, thank goodness.
  • Current Music
    John Adams: Short Ride in a Fast Machine

Cellular automata question

Can anyone give me a nice way to generate all the distinct (that is, disregarding rotations and reflections) 8-cell (3x3 grid) neighbourhoods for two-state cells?

Even nicer if you can come up with one for n-state cells :)

I really have tried quite hard to find this stuff on the 'net and drawn a blank, so I'm not being idle.
  • Current Music
    Lots of Philip Glass

Philip Glass music-browser

Particularly for mrph, but I suspect other people may like it.

Before I point you at it: It works only with Internet Explorer with Java. That's what the site says, and it certainly doesn't work with Netscape/Mozilla/Firefox. I haven't checked with anything else.


The IBM Glass Engine enables deep navigation of the music of Philip Glass. Personal interests, associations, and impulses guide the listener through an expanding selection of over sixty Glass works.

It's pretty amazing. You can navigate by work title, composition date, track title and track length, and also by 'joy', 'sorrow', 'density', 'intensity' and 'velocity'. Just click-and-drag on a scale, and listen to what you find. By default, the Glass Engine uses the full database of works, but you can restrict it by genre, such as Film, Ballet or Opera. Not everything is in the database (nothing later than 1999, and it seems to be limited to pieces that have been released commercially, so there's nothing from The Making of the Representative from Planet 8, for example) but there's lots in there.

It helps to have a decent-speed 'net connexion, and the sound isn't CD quality, but it's good enough to explore and enjoy.

Now all that's needed is for people to implement this for all the other composers :)
  • Current Music
    Philip Glass: The Screens
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