I don't recall if it was the pdp-9 or the pdp-11 that was the hybrib
digital/analog computer - I spent 3 years making MUSIC5/10 and
Standford SCORE programs and realized them on this type of system.
gary,
as far as i know, both the pdp-9 and pdp-11 were completely digital computers -
might have been integrated with an external analog computer and synthesizer, though.
as far as music 5/10 goes, well, probably would have been something like music5 on a pdp-11 (if not music-11) or music10 on the pdp-10. i`m not sure if anything like music5 (fortran) was ever ported to a machine of the pdp-9 class. maybe the related and more popular, at the time, pdp-15 but i`m not sure on that one either.
best,
dave