In response to the query raised about barrel piano repairs, many
years ago I helped restore one which involved, amongst other things,
a complete restringing.

It turned out very well but I later learnt from a professional piano
technician that it is advisable to use one gauge higher string size for
the treble strings when restringing.  Apparently this allows for all
sorts of factors such as the differences in modern steel compared to
the old steel, the movement or 'stretching' that occurs with the frame
over time, and it gives a slightly nicer brighter sound than the
original.

I also learnt how to de-tension the strings without it exploding!  Do
not be deceived by an apparently old worn out barrel piano, as there
can still be several tons of tension on the frame from the strings.
If I remember correctly, Reblitz's book tells you how to go about this
particular job safely.

This particular barrel piano had to have the frame rebuilt due to the
previous owners trying to raise the pitch too much and consequently
over-stressing the frame.  We also built a new case for it.  It is
still playing well today apparently.

Andrew Leach
UK