From what I've seen, the 700 had a membrane keyboard, but it sounds
like someone's noodling on a standard black-and-white keyboard.
Perhaps it had a MIDI controller attached for the demo?
> http://www.archive.org/details/OTG_1988_03_21
>
> a strange audio recording introducing the Buchla 700 back in '88
Richard Lainhart
http://www.otownmedia.com
http://www.downloadplatform.com/richard_lainhart
http://www.vimeo.com/rlainhart
http://www.airglowmusic.com
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