Which begs the question, does the tone come from the relative BP% or the relative tension. Seems that even if you use a wire that has a higher BP% the tension is still too low to match the other notes in that section. On the B you go from about 160lbs to about 120 lbs at the break. David Love www.davidlovepianos.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Al Guecia/AlliedPianoCraft Sent: Sunday, December 20, 2009 7:38 AM To: pianotech at ptg.org Subject: Re: [pianotech] BB Mason and Tenor Cross over Serge, This would be very handy to have. Where do I get this Excel spreadsheet? Al From: Serge <mailto:serge.harel at videotron.ca> Harel Sent: Sunday, December 20, 2009 9:04 AM To: pianotech at ptg.org Subject: Re: [pianotech] BB Mason and Tenor Cross over Hi Dale There is a new other way to improve those tenor zone. The problem is the low breaking point about 35% for note # 21 of a S&S B French piano maker Stephen Paulello come with the genius idea to make string with softer steel. With this note # 21 F you will have about the same tension and a better breaking point of about 55% with the Paulello String model O and the possibility to change the scale to have less tension but normal BP...!! There is two other model 1 and 2 for older romantic piano like old Erard or Broadwood Paulello offer a free Excel program all you need is to put the speaking lenght and choice the best type of string to got the breaking point you looking for each unisons. I just use those string this week on a 85 notes S&S B in the low tenor, great result... Regards Serge Harel 2009/12/19 <erwinspiano at aol.com> Hey Al SInce you are rehabbing a BB soon ....I forgot to mention that I have tried less invasive alternatives to smooth out the break at the tenor bass cross over. The Mason & Hamlin BB the client complained of the tonal disparity. Ahhh, A bright young man is he. So I simply added three wrapped bi-chord unisons to the first three tenor notes,no. 22,23,24 and the results are very pleasing. It is an excellent break. It required adding only one hitch pin and installing 3 Bi-chord agrafes. Nothing fancy to plug the three eextra tuning pin holes. I used ...the tuning pins in case years later someone has the audacity to make it original again. But if they want to they can. First tried this on the infamous Steinway B cross over and it is also a significant improvement at nominal effort. I got to thinking about the Baldwin F and how many long wrapped tenor bi-chords were used. Arledge tell me they are high tensioned and hard to make but he had no difficulty with strings for eith modification. it figired that these modification could also be successful. Give it a whirl Cheers Dale Erwin > > > -- phone 514-750-4522 cel 514-569-4414 Piano Perfecto 5932 rue Viau Montreal Qc Canada H1T 2Y4 Piano Shop 17 Ronald Drive Montreal West, Qc Canada H4X 1M9 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091220/4c4f9c40/attachment.htm>
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