Top Notes of Octaves Sound Flat

[A440A at aol.com]

<<  Some people thought it was in tune when the top note was slightly sharp, 
and maybe that is what I am experiencing here.  >>

It all depends on what you mean by "slightly".  If you have an Accutuner III, 
simply tune the top octave aurally until it sounds "right" to you, then, with 
your FAC numbers in place, start running the DOB up until it stops the 
lights.  This will give you a number that you can share, and others with the same 
machine can duplicate what you like, and tell you if they agree. 
   I would suggest that you add +2.0 to the DOB and see what that does to 
your perception of the top end.  Do this as you pass A4, and tune all the way to 
the top.  (personally, this creates a tuning that is way too sharp for my 
ears, while sounding perfect to a local jazz artist!).  
 

Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html