[sdiy] Triadex Muse, was Identification of 1970's logic parts?

[john mahoney]

----- Original Message ----- 
From: "John Loffink" <jloffink at austin.rr.com>
>
> Do you realize that Musical Applications of Microprocessors has a block
> diagram of the Muse and a description of the circuitry?  This is not a
> complete schematic, but does show the basic counter and shift register
> blocks to build all the pieces.

Thanks for that pointer, John. I bought MAM a few months ago (yes, I'm an
SDIY latecomer) and thus far I have merely skimmed through its 800 pages.
So, I was surprised to learn that the Muse was discussed in the book. But...

I read about the Muse with mixed emotions, because this is the second* time
that I've seen one of my ideas contained in MAM. Sigh... As it happens, I
was practically reinventing the Muse in my head! So I'm now seeking more
information on it.

The real key to the Muse's operation are the logic rules, which
unfortunately are not explained anywhere in detail, as far as I know. But
that's okay, since I'm not trying to clone the thing. :-)

I found a little info at http://userwww.sfsu.edu/~hl/c.muse.html. Although
Paul Geffen's Muse website is no longer, www.archive.org has it cached. The
US patent may be helpful, but I don't really expect it to explain the logic.

At least one Muse simulator was being developed,
http://www.trovar.com/muse/muse.html. Note: It's old, as in Windows 95 old,
and seems to have died in Beta. The documentation page for that provides a
few helpful details on its operation.

Does anyone have the "article by Don Lancaster in the February 1971 issue of
Popular Electronics magazine described the "Psych-Tone"? It's apparently
similar to the Muse in some ways. The Muse is not exotic technology, but I'd
still like to read about the prior art in this field.
--
john (rambling? me??)


* My other idea discussed in MAM is a square-to-sawtooth waveshaper.