I bought a tuning wrench (called a tuning "hammer", I think --
I still have it), and at least got the strings into relative
tune with one another -- albeit a half or full tone down from
where it should have been tuned.

I don't think it is that bad!

It's just that it evokes that lock-in at the pub for "roll out the barrel"
feeling, which isn't appropriate for Grieg or Rachmaninov.

Christian.