Sequential Circuits Poly Sequencer 1005 for Prophet 5 with Original Demo Sequences Tape Cassette

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SN 0125 via this auction

Here's something you don't see every day. The original cassette tape for the SCI Poly Sequencer 1005. The listing is for both the unit and the tape, but the tape is what struck my eye. Anyone that collected rare tapes and/or record albums knows the feeling when you see something like this. Doing a quick search for Poly Sequencer 1005 on the site, this appears to be the first time it has ever been featured here.  Pretty cool when you think about it.  A little rare gem from synthesizer history.  I'll take a working synth first any day of the week of course, but it sure is cool to look at realizing not only what it is, but where it came from.  Check out the birds on the edges!   I'm curious if Wine Country Productions ever reissued these.