You may have heard about Pure Data (Pd), the open-source cousin to Max/MSP and a powerful tool for visual programming or “patching” music and multimedia. Pd has even appeared in the iPhone app RjDj and creating generative music for EA’s hit game Spore. But actually learning how to use the thing? Or learning some of the more advanced possible techniques in sound synthesis and processing? That’s another matter.

News may filter through Boing Boing, Slashdot, and Reddit – and certainly, this story already has. But oddly, I learned of this item when I happened to meet up with the blog item’s author in Somerville, Massachusetts. He has digital analysis he believes may prove that a track was recorded to a click track.

Paul Lamere is a developer at Echo Nest, a brainy think-tank of music geeks developing new ways of processing musical metadata in the cloud. Whereas services like Last.fm focus mainly on content and community, Echo Nest’s API wants to make the computers in the cloud smarter about how they listen to your music. We’ve had a look at their work twice before:

All Christmas Music, Boiled Down to Sixteen Droning Singles
Musical Brain API: An API for Music on the Web – And it Makes Pretty Pictures

The Remix API crunches data about rhythmic information at a number of levels. Since we first saw it, that API has led to an SDK (read: something you can program more directly), all assembled in Python. The Python-based SDK is now capable of creating the world’s most unlistenable mash-ups, among other things – some oddly compelling. On Friday, I got to listen to tunes with every other eighth note removed and Michael Jackson crossed with tunes – that is, until the programmers in the office started to complain because they were about to lose their mind. (Echo Nest uses a Sonos system to pipe music office-wide. I hope we can give you a preview of those clips soon.)

Remix SDK (currently Python)

But perhaps the most interesting thing this team has done so far is Paul’s work on plotting rhythmic analysis. Plots of tempo deviation, measured in beat durations, yield two interesting revelations:

In search of the click track [Music Machinery]

1. Much of the music you know has a lot of rhythmic variation. (Dizzy Miss Lizzie by the Beatles, anyone? No Ringo Starr jokes, please.)

2. A lot of the other music has disturbingly little rhythmic variation.

I’ve had some amazing meetings here in Berlin, with plenty to share with you over the coming weeks and months. I’m now headed to Dublin tomorrow for the amazing-looking DEAF festival. If you’re in or near Dublin, you may want to just clear the next few days for live music lineups, parties, film screenings, gallery events, and generally a dream lineup of electronic music events.

I’ll be part of a series of talks Saturday. I’ll be talking generally about how we can think about music visually, and how those visual metaphors in software impact music, with some new examples built in Processing (among examples of other work). I’m really excited about every one my fellow speakers, as well. Gavin from Future Audio Workshop (creators of Circle) will be talking about sound generally, complementing what I’m covering, and we have a number of terrific figures to chat. The film Totally Wired covers the scene around synth building and the modular renaissance as found at Schneider’s Bureau … well, you can see the lineup for yourself.

For the rest of the world not in Ireland, believe me, I’ll be sure to bring you as much back from this event as possible, even if I’m catching up through the end of 2008.

Saturday 25th October at The Digital Hub:

1.00pm – 1.40pm FAW [Future Audio Workshop]
1.40pm – 1.50pm Break
1.50pm – 2.30pm Peter Kirn [Create Digital Music]
2.30pm – 2.50pm Break
2.50pm – 4.10pm Totally Wired Film [Dir. Niamh Ahern]
4.10pm – 5.10pm Andreas Schneider [Schneider’s Bureau]
5.10pm – 5.30pm Break
5.30pm – 6.30pm Dave Vorhaus & Mark Jenkins [White Noise / BBC Radiophonic Workshop]
6.30pm – 7.00pm Break
7.00pm – 8.00pm Diffusion Concert / Soundings
8.00pm – 9.00pm Spatial Music Collective Concert

More details on Saturday’s lineup, at the DEAF Ireland Blog

DEAF live events

Here’s the trailer for “Totally Wired,” which also features a terrific original score:

Trailer for ‘Totally Wired’ from niamhahern on Vimeo.

Microsoft Research has done some amazing work; it doesn’t always move me to tears, but there’s some fantastic stuff that deserves real recognition. And MySong is … well, technologically impressive, if musically painful. It’s a sort of collision between AutoTune and Band-in-a-Box: it recognizes a melody as input, then harmonizes that melody.

The vocal input goes well, and illustrates the number of different inputs beyond the mouse you can expect in The Future. Here’s the problem: harmony is extraordinarily difficult to model on a computer because of the number of variables, the amount that’s driven by instinct and art. And let’s be blunt: it doesn’t work right.

In short: if you’re planning to build a Jerome Kern robot, the technology may not be there just yet.

What is the sound of an invisible hand playing a MIDI controller?

Yes, in the latest evidence that the Interwebs really are Douglas Adams’ imagined Infinite Improbability Drive, a conversation from CDM’s humble forums about the economics of Radio Shack and MIDI jacks has led to a blog response from a non-musician defending the true legacy of Adam Smith.

I’m serious. I’m not just, you know, dumbing down CDM and pandering to the economist audience to pick up cute economist girls.

The blogger also feels our forum poster say “dude” too much. Like, whatever. Don’t have a cow, man.

It started with a thread about the ridiculous price of electronics. (Personally, I wouldn’t try to extrapolate any kind of larger economic theory from a chain run as badly as Radio Shack has been under recent management, but our posters did, and I digress.)

UK economic blogger Gavin Kennedy fires back:

The myths about the invisible hand are widespread and deep. It has been switched from supporting an argument of Adam Smith about risk-avoiding merchants contemplating the risks of foreign trade into an all purpose guide to individuals in markets …

The real wonder about markets is that there is no central direction; there are no invisible hands, feet, or disembodied parts, guiding anybody. There does not need to be! The relative prices of whatever is exchanged are the only guides needed. It’s called the price system. That’s what Adam Smith actually said.

And he compares the myth of the invisible hand to the myth of Santa Clau– hey, stop crying, Suzie. I’m only joking. The invisible guiding direction of market economics is real, and it’s going to bring you a MicroKORG next Christmas, but that’s not until December and your birthday isn’t even until October.

Ahem.

Of course, Gavin is right.

Image credits: gravestone of Adam Smith, Duncan; gravestone of Radio Shack, Куртис Перри.