[ Bill Chapman wrote in 200128 MMDigest:

> In this very dry desert climate the piano seems to like being
> somewhat flat.  Programs I have sampled do not readily adjust to
> a lower pitch. 

My favorite tuning app is "gStrings", which permits a broad choice
of temperaments and which allows setting of the desired tuning pitch
with a resolution of 0.01 Hz (about 0.04 cent at 440 Hz).  There is
an ad-free version for US$4.00.

Marshall Jose

 [ See https://tuner-gstrings.soft112.com/  -- Robbie