Seen on Matrix, with no information. It was, as it turns out, based on a Texas Instruments sound-effects IC (probably an SN76477). It appears to be built into an old tube tester cabinet. In case you didn’t know, Raes is a notorious Flemish artist, founder of the Logos Foundation—and dedicated nudist.
Here is a list of Raes’ DIY instruments.
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Seen Theresa Andersson yet?
The technology to do this has been readily available for at least 30 years. What gets me is that very few actual working musicians seem to be capable of doing a decent one-person-band. (She also appeared on Conan O’Brien last year.)
Sonodrome – small, twisted and elegant DIY
You won’t find more simpler obscure gadgets than the ones sold by Sonodrome. They even have PC software to go with their little bits of hardware. PC boards come in four colors. (And MAKE magazine’s market is selling the amplifier kit, along with the Atari Punk Console.) Enclosures are up to the builder. YouTube videos here.
JAZARI…..a little something Matrix didn’t catch
Using two Wiimotes feeding a Macbook via Bluetooth, to trigger solenoid-played drums.
Jazari’s website, and a post on Engadget. (Yes, cowbell.)
Found: a homebrew modular synth.
Dave Wright found this at a “junk shop” in Tucson. It uses two CEM 3394 chips, plus a PAIA MIDI-CV and a few assorted circuits. It was very well-made, almost commercial quality. The maker’s identity is a total mystery. 
Video:
mystery homebrew synth
For you guitarists who feel left out: a deviant controller
The Misa digital guitar.
Great idea, and the controller is based on Linux, allowing you to mess with its operation. Mentioned on Slashdot.
(Why does it make me think of the Korg Kaoscillator? Isn’t that odd.)
Obscure keyboard of the month
—if not the decade.
Lambdoma Keyboard
Is it still being made? I can’t tell, the order form was on an AOL homepage, which has since been pulled down.
A cornucopia of crazy for the holidays
First, did you know that RCA made a vacuum tube that was usable as a phonograph pickup?
Second, Feena Electronics. They introduced an interesting DJ MIDI controller in 2006. Since then, nothing. The last post to their forum was September 21.
Finally, this guy is building a duplicate of the old Metasonix Hellfire Modulator. He’s making a chassis for it out of plain sheet metal, and he apparently mated two toaster ovens together in order to bake powder-coating onto it. DIY FTW!!!
What is the Mot-Box?
It’s an analogue drone-box with a much vaster range of sound effects than single-box devices can usually do. Simple yet complex.
(It’s strange that this Italian company has no contact info on their site except email.)
(via Matrix)
Some of the crazy at gieskes.nl:
First, the “Acid Machine”, which generates pitches with a rotating wheel and LDR.
Plus, the Synth-Fan, doing similar business with a small computer fan.
And this, whatever it is.
How to play stuff found in thrift shops.
NYC artist Terry Dame and her “Electric Junkyard Gamelan”. Except for the contact mics, I don’t see anything electric in her shows, but this is a good example of what anyone can do with the most basic (cheap) tools. 
New controllers
There’s been a big stink about the British-made Eigenharp controller, with mention from Engadget, Synthtopia, the BBC, and bloggers like CDM and Matrix. It requires a Mac, however. Hope they sell some and are encouraged to port the software to Windows. Given its complexity, ~$7000 isn’t a terribly high price.
(Just remember that people nowadays routinely pay $50,000 or more for a grand piano.)
Almost forgotten in all this hype was a different controller, the Madrona Soundplane. Looks as though it’s not finished yet.
I bet you didn’t know about this accordion MIDI controller
The Cool Chromaticover. You can’t really tell from these terrible product pages, but this is a standalone MIDI controller with velocity and several slightly different key arrangements available, that just happens to be made to fit over the keyboard on a Yamaha combo instrument. Unlike the Yamaha (or most other MIDI controllers) the Chromaticover appears to be really well-made, mostly metal with metal buttons.
The only dealer selling it (piens.be) is also the owner of the company making it (cool.be). Also strange is that very few people in the accordion world, or elsewhere, even know this product exists. I’ve found very few Google mentions of it.
(This was discovered by the diykeyboard group, who now have their own wiki.)
A gourd. With a synth.
My favorite part: look at the “Related Videos’ section. It includes a mishmash of weirdness, including a promo video for “Kokopelli Rising” by “Bing Futch”, a bland New Age album. The exact opposite of what Dave Wright does with his gourd.
And now, he’s put it on eBay for sale……..
Mechanical sequencer…………made of junk
The work of mad Swedish artists Erik Nilsson and Peter Kädergård. Video here.
What would you do with a player piano with MIDI input?
If you’re Jeff Stolet, you design software to take inputs from infrared sensors, convert them to algorithms and then to MIDI note data, then send it to the piano. So, he plays complex piano music—by waving his hands in the air. Here’s the result:
More about his project here.
DIO…….A new tube synth…….
by Not Breathing……ugliest old radio I ever saw.
Video here, synched with an Akai MPC.
Also of some note: the work by Snyderphonics. Their Manta USB controller looks like a winner. So buy one.
Unearthed Circuits
They build some damn impressive gadgets…..that do something.
And how often do you get to read about Paul Ketoff and his notorious Syn-Ket?
Not to mention its predecessor, the Fonosynth. Yet another great unsung pioneer of music synthesis.
Odds and ends (videos)
First, artist Jake Waldron usually does sculpture;
but he did build a complex noise box, and he circuit-bent a TV set.
Then we have this thing, made of an old SN76477 noisemaker chip.
The guy who built a sequencer out of a Dekatron tube is braver than he realizes–
Dekatrons are erratic and unreliable. Same guy who previously built a modular synth out of tubes.
An experimental analog video synth–very rare to see anyone doing this today.
(Doing it with a VGA monitor simplifies the electronics, because
you don’t have to worry about recombining sync and chroma signals.)
Finally, this defies explanation……
More Dave-Wright-branded insane
It’s got tubes, it’s got transistors, it’s got a CD on a variable speed motor with the coating scratched off and a photo pickup underneath……it’s not on his website. Why does he do things like this?