Technical #5

[John Freeman]

Ron Nossaman wrote:

> >I am putting these questions on in an attempt to help get the list back to
> >the more interesting things.
> >
> >Jim Coleman, Sr.
>
> Great! I'll play too. I tuned an Acrosonic and a Hamilton studio yesterday
> and took note of where the little 'hash' marks, cast into the plate just
> below a row of tuning pins through tenor and treble, fell in the scale. The
> Acrosonic had them at the C's and F#'s and the Hamilton had them at F#3,
> A#4, D4, F#4, A#5, C6, G#6, and E7. Chip tuning guide markers, I presume?
> What other patterns were used on different pianos, and why?
>
>  Ron

  At the time Baldwin started the "hash" marks I understood that they were for
the benefit of blind tuners, for general location on the scale.

John Freeman