I do believe those small vinyl's are what are known as "Flexi Discs"

http://en.wikipedia.org/wiki/Flexi_disc

Like this one from 1958

this is really cool electronic music history!

So sweet!

Must...
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Great find, thanks for sharing! These are some of the heaviest names in computer music, cybernetics and all that at the time. I've added it to this gigantic time line: http://chipflip.wordpress.com/timeline

reminds me of stuff from OHM: The Early Gurus of Electronic Music. check that if you're into this stuff

here's one of my favorites from that

http://www.dpbsmith.com/pdp1music/index.html
http://www.swapmeetdave.com/PhilaMusic/Recording.htm

Pretty cool find! I'm sure a lot of us have some interesting old computer/music books

I'm not sure, there's no mention of the computers that were used in the book, as far as I can tell. I imagine they probably used large mainframes or other things that only universities had at the time.

what kind of computers made this music? awesome titles too, "COSAHEDRON". sounds like a starscream song.

Not sure if I put this in the right forum, but...

I found this book at my local library's used bookstore about a year ago. It looked pretty interesting, although I can't understand the mathy mumbo jumbo inside. Only about a week ago, I discovered that it also came with 4 small vinyl records with some example computer pieces. They're amazingly thin and feel pretty fragile, like a floppy disk without the plastic casing, so I recorded them to my computer in case they ever broke. Unfortunately, only sides 1-3 of the total 8 were playable in full; the rest had too many broken grooves. I thought some people here might find the music interesting.

I didn't do any noise reduction on the recordings beforehand, so apologies for the clicks, pops, and hiss.

Side 1 Audio

Side 2 Audio

Side 3 Audio