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Silent G - Logic

"You've got to crawl low under smoke. You don't want to gasp, cough, or choke. Smoke will hurt your eyes, but you know smoke will rise, so crawl low under smoke. You've got to crawl low under smoke. You don't want to gasp, cough, or choke. Get down on all fours. Crawl low on the floor, and crawl low under smoke. Crawl low under smoke. Crawl low, low low low low low!"
-Song by Gloria Nissenson & Elaine Lifton

"I don't even want to know about that, I just wanted to see if you had any extra matches."
-Anonymous man on the beach during moxophone testing

Moxophone

The smokey jazz club. The campfire sing-a-long. The haze at a Ben Harper concert. Smoke has long been associated with music. It's a dark, sexy, mysterious, and dangerous form that, like the iTunes visualizer, appears to move to the music despite its diaphanous disengagement; and these days smoke is as much an onstage presence at light. In our never-ending struggle to tap the obscured data of exsistence, we tackled the impressivly tough-to-harness particulate wind of smoke via an elaborate hanging matrix of 20 circuits, each comprised of carbon monoxide/smoke detecting resistors feeding an astable 555 occilator. This set-up creates a 20 voice square wave, with voices dropping in and out depending on the concentration of CO or smoke within their sensor screen.

Despite the warning of a cautious ex-construction fastfood employee, we used a cheap and versitile PVC support. Apparently PVC melts and burns fairly easily, and since this is a contraption meant to sit near or over a fire, his was a valid concern...to a lesser band. We're about the music, not safety or the environment, champ. The Moxophone Modules hang at lung level, and their screaming is a reminder of the perils of second hand smoke.

We were so close to calling this thing the Pipe Organ.

  

Crystal Lite is now less filling.

Big enough for the mobile fireplace is good enough for me.

Again, in this project we are using and repeating a simple astable 555 circuit. The mesh is shrouding the CO/smoke detector to prevent particular matter from entering our insulation and scoring the board. We rock hard.

Encasing the last of the suspended square wave outputs. This insulation makes the circuits a little more fireproof and helps them sway in the breeze.

These wire runs were the biggest pain in the ass. I swear...in the next smoke player we build, we will use at least 2" PVC
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