<HTML><HEAD></HEAD> <BODY dir=ltr> <DIV dir=ltr> <DIV style="FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: 12pt"> <DIV>OK Mark I understand now.  He’s only heating up a part of the string  ......  the part from the T-pin to the capo bar or aggraffes or pressure bar  .......  just before the speaking length.  Metal conducts heat well.  A maintained level of heat will eventually heat up the entire piano.  Most strings go flat when they go out of tune  ........   how do you make a string go sharp??  Freon??  Ether??  It’s too bad he spent all  that time and effort on this.  I’ll wait patiently for my phone to ring.</DIV> <DIV> </DIV> <DIV>Thumbs down.</DIV> <DIV> </DIV> <DIV>Lar</DIV> <DIV> </DIV> <DIV> </DIV></DIV></DIV></BODY></HTML>