Recently I walked into a church in Sheringham, North Norfolk, England,
while organ music was being played.  After listening for some time and
being quite taken with the work, not wishing to interrupt the organist
I walked behind him on the way out.  It transpires that the work was by
Rheinberger's and simply called Passacaglia.  Now Rheinberger wrote many
Organ Sonatas and I suspect that was a movement from one such though I
cannot find any movement of this name mentioned in my CD catalogue.  Could
some kind person please identify this work (it may be in G/E min.) with
opus no.  etc and give me the number of a CD which contains it.  Many
thanks.

Ray Stamford, Cambridge, England