Marshall, Was this a new string replacement?  They go out right away!  You probably know this. You can seat the strings with the hammer shank style, but also check the bridge pins and all termination points...hitch, agraffes, or capo, as well as good tight coils at the tuning pin.  Those all have to be set snuggly and happy...coils all tight, strings at the hitch pin right on the plate, etc..  Also try tapping the bridge pins in or check for loose ones. Is there sustain at this note? Termination points if not seated will kill sustain, unless it's a poor hammer.  sometimes both. Otherwise, maybe the strings/tuning pins just weren't settled in just right when you tuned it, or the last guy..  It happens, mate. sometimes a really loud tune with the same note played over and over and over and over...you know... Paul <table width=100%> <tr valign=top> <td>From: <td>Marshall Gisondi <pianotune05@hotmail.com> <tr valign=top> <td>To: <td><pianotech@ptg.org> <tr valign=top> <td>Date: <td>11/18/2011 02:45 PM <tr valign=top> <td>Subject: <td>[pianotech] pianos behavior</table> <hr noshade> Hi Everyone, I spoke with a customer who said that "a" 3 seemed to go out shortly after the piano was tuned back in September. I asked her to let me konw if that ever happens again, but I'm curious as to why the tambre as she called it would go out of tune so quickly if I set the pin which I'm sure I did. The piano is a Mason Hamlin BB. So my question is this and it relates to another piano I'm visiting next week.  Can taking a hammer shank and pressing the string around the bridge pin area and also around the hitch pin area help it stay in tune better?  The customer I'm visiting next week has a Yamaha GB1 that seems to go out of tune easily after the last technician tuned it. I have not idea who the last person was that tuned it.  I believe this is called seating the string, so is pressing it with the hammer shank helpful as I do not have a brass rod now.  Or does this simply help with false beats?  what about pressing the hitch pin loop?  thanks everyone, and thanks for any other help that you've given in the past.  I'm not sure if I thanked all of you last time, but in case I didn't I do appreciate your help and ideas.   Marshall ps. Today one of the schools I tune for replied to m y reminder for a tuning tellingm e the piano "died."  So once I find out what she means, I'll let you guys know.  It is a Yamaha Nipponga hmm spell check here nippongacci? Land of the rising sun I think this means I was once told.  I'm curious has t how the piano died unless she means an electronic one.   Marshall Gisondi Piano Technician Marshall's Piano Service pianotune05@hotmail.com 215-510-9400 <a href=http://www.phillytuner.com/ target=_blank>www.phillytuner.com</a> Graduate of The School of Piano Technology for the Blind <a href=http://www.pianotuningschool.org/ target=_blank>www.pianotuningschool.org</a> Vancouver, WA