WalkSX from Gijs on Vimeo.

As the Sony Walkman turns 30, many of the mobile cassette’s fans wax nostalgic. But it takes Gijs Gieskes to wire up a new Rube Goldberg-style musical instrument based on the Walkman’s simple tape playback.

Follow along carefully through the signal flow of this unusual instrument:

1. The Walkman has audio on the tape itself, sampled from a Roland TR-808 drum machine.

2. Because a compact cassette has two tracks (left and right, for stereo), one track is dedicated to the drums, another to the rim shot.

3. The rim shot track is fed as a mono audio input to an Arduino (the open-source microcontroller platform). The Arduino responds to the audio level, so each time a rim shot hit occurs, it ….

4. …sends a sequence event to the Gakken SX-150. That means that you can adjust the speed of the whole contraption by…

5. …adjusting the speed of the tape. (Bless you, analog playback!)

It takes Gijs to think that way somehow: put together, these elements are actually fairly simple, but strikingly effective. Fortunately, if this does inspire new ideas, Gijs has posted all his Arduino code, so you can check this out and try something yourself.

http://gieskes.nl/instruments/?file=walksx

Design in music in a digital world can be about the object as the sound – musical ideas translate from one medium to many others. And just when you think you’ve seen it all, someone comes up with a new visual metaphor, a new creation for manipulating music.

OTTO is a functioning prototype combining interactive hardware and computer software, the invention of Luca De Rosso. He produced the design as a thesis project for his masters’ degree in Visual and Multimedia Communications at IUAV University of Venice. It uses the Arduino open source hardware platform and Cycling ’74’s Max/MSP software, and Luca accordingly is quick to credit the assistance of those two communities. In that sense, two, I think it points to lots of new design in the field of integrated hardware and software – not just standalone hardware or standalone software or generic controllers for anything, but hardware that itself behaves like software.

All photos here courtesy Luca and used by permission; see his Flickr account.

OTTO ~ demo.01 from Luca De Rosso on Vimeo.

Luca sends along some more details of the behind-the-scenes workings just for us. (Thanks, mate!)

Artists Gijs Gieskes’ sequencers are almost like physical, mechanical software, an expression of musical structure in object form. As such, even as they make strange sounds, they become musical sculpture. His latest Servo Sequencer combines optical and mechanical process, as frequency circles spin on a turntable and tone arms float above them.

The Servo Sequencer is built for exhibition use – meaning, yes, he’s brave enough to let you play with this contraption. Sequence the arms using buttons, then adjust the volume mix and placement of each arm using the joystick.

Serv Seq from Gijs on Vimeo.

This project is unusually well-documented. Gijs provides complete specs, the script that controls the arms, and even a little web app that generates those lovely patterns.

http://gieskes.nl/instruments/?file=serv-seq

But for those of you near the Netherlands, you should go check this out in person. Updated: The piece will be part of an exhibition in Breda through August 23, with multiple opening events featuring local artists from Eindhoven and Breda, plus live performances and concerts including Gijs and his talented brethren and neighbors.

Here & There Exhibition, mu.nl [Info in English]

The events:
Opening Part 1:
KOP, Breda
Thursday 25/06 08.00 pm

MU, Eindhoven
Friday 26/06 08.00 pm

(It’s a bit confusing as the events swap between Breda and Eindhoven — there’s a second opening Saturday July 25. Gijs explains “the first [opening] is in breda (thursday), then a day later (friday) in eindhoven, where my machine will be. and then a month later its the other way around.”)

You know, Breda. Like, right … here. We’ve got a number of readers in the area (whom I suspect know more or less exactly where this is); let us know if you make it!

Forget NAMM — one of a handful of hardware I’m most excited about in 2009 is all DIY, the 8-step GorF step sequencer. (I’m hoping for follow-ups like a Forg or Grof. Kermit (Muppet) fans know what I’m talking about.)

With four sequences with parameters, steps with pitch, gate, and Control Change, sequencing controls, legato mode, and the planned ability to both send and receive clock, this is one useful-looking device. And from the video above, it looks like it’s progressing really nicely.

In fact, if you think about it, it’s kind of puzzling that there isn’t a simple, cheap, commercial device that does this. As a kit, though, people could hack in features others might not imagine, it could be combined with other DIY and open source synth and music projects, and it makes a great kit and learning tool — meaning it’s more fun, anyway. And if you want a pink case, you can do that, too, but you can decide whether you want it more salmon or fuchsia.

Paul, do keep us posted!

Via musatkl / nostromo.

Here’s something I’d very much like to see: a hackable, kit step sequencer.

nostromo tips us off to a blog item on his site on the project. The creation of Monowave maker Paul Maddox, the 8-step sequencer is based on an Atmel Mega16 micro chip. The whole thing is looking very compact, which could make a nice little unit or might integrate well with other projects (like a synth).

The other good news to me: new DIY hardware could be a great way to run clock into software. Previously, that job has fallen to somewhat dull consumer drum machines. With DIY projects, even software lovers may soon be hacking new features into hardware and manipulating software sequences with that.

Planned features include “rock-solid timing” (sounds good), plus:

• 4 sequences with parameters
• Steps with pitch, velocity, gate on/off, and two Control Change messages (CC1/CC2) on a selectable channel
• Adjust tempo, base note (including via MIDI), sequence and step length
• Legato mode
• Send MIDI clock out, MIDI sync in (currently input isn’t done – input is usually trickier than output, but output may actually be more interesting to people)

nostromo already has some ideas for how to make this interesting when combined with chip trackers like LSDJ and LPGT, so worth reading his original post (thanks!):

Meet Gorf [mustakl]
GorF Project Page at Paul’s site Vaco Loco

Anyone out there worked on a similar project? (I’d sure love to have a DIY sequencer or two at our Handmade Music events in NYC!)