David   My frustration is that when I don'<A class=spell id=sp-0 title="Click here to replace with: 
T, Ft, St, at, ct, et, ft" href="#">t</A> change to more ribs in the trebles I often fight the same voicing issues that were in the original design.     I'<A class=spell id=sp-1 title="Click here to replace with: 
Ave, ave, vet, vex, vie, v, e" href="#">ve</A> come to the conclusion that the top two capo sections on most Steinways & other need at least six ribs for stiffness & sustain support. Usually there are only 5. Well at least I like the sustain evenness of voicing & lack of weakness/soundboard resonance's better.   I don'<A class=spell id=sp-2 title="Click here to replace with: 
T, Ft, St, at, ct, et, ft" href="#">t</A> think it makes as much difference when sticking to the original number of ribs  in the bottom of the piano but adding ribs & fanning them under the bridge is in my highly subjective opinion something I will continue to do. A high- <A class=spell id=sp-3 title="Click here to replace with: 
bride, braid, bid, rid, bird, boride, braids" href="#">brid</A> idea would to retain the bottom no of ribs & there original locations & then fill in more ribs that lie on the belly rail. Fanned or un fanned there will be an improvement.  The other plus is that there aren'<A class=spell id=sp-4 title="Click here to replace with: 
T, Ft, St, at, ct, et, ft" href="#">t</A> as many new notches to cut.   The first Steinway O I did a few years back with a fanned array was an amazing success. I added a shorter cut-off than yours &  I believe I only added one rib & it was under the usual trouble note 64 area. Convenient aye? Gorgeous sound.    Let us know how it turns out....or just for fun....... invite us all over & have a concert party. I'll bring the drinks.   Viva la choice   Dale <div id=AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590> <STYLE> @#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4;} #AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 p.MsoNormal,#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 li.MsoNormal,#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman";}#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 a:link,#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 span.MsoHyperlink {color:blue; text-decoration:underline;}#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 a:visited,#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 span.MsoHyperlinkFollowed {color:blue; text-decoration:underline;}#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 p {margin-right:0in; margin-left:0in; font-size:12.0pt; font-family:"Times New Roman";}#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 pre {margin:0in; margin-bottom:.0001pt; font-size:10.0pt; font-family:"Courier New";}#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 tt {font-family:"Courier New";}#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 span.EmailStyle19 {font-family:Arial; color:navy;}@#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in;}#AOLMsgPart_2_eb7599e1-9e3b-45c6-b9c5-7b3e647e1590 div.Section1 {page:Section1;}</STYLE> <div class=Section1> <div class=MsoNormal>I’<A class=spell id=sp-5 title="Click here to replace with: 
Ave, ave, vet, vex, vie, v, e" href="#">ve</A> done them both ways (fanned and original rib positions without significant compression) and haven’<A class=spell id=sp-6 title="Click here to replace with: 
T, Ft, St, at, ct, et, ft" href="#">t</A> found a huge difference.  Fanning the ribs seems to reduce resonance's some (though it doesn'<A class=spell id=sp-7 title="Click here to replace with: 
T, Ft, St, at, ct, et, ft" href="#">t</A> seem to eliminate them entirely), it also allows you to float the bass (which I didn'<A class=spell id=sp-8 title="Click here to replace with: 
T, Ft, St, at, ct, et, ft" href="#">t</A>’<A class=spell id=sp-9 title="Click here to replace with: 
T, Ft, St, at, ct, et, ft" href="#">t</A> do on this project).  The panel was ribbed at 6% (30%RH @ 85 degrees <A class=spell id=sp-10 title="Click here to replace with: 
FA, FL, FM, Fe, Ft, bf, fa" href="#">F</A>) so it does have just a bit of compression.   On some projects, you have to make choices.  </div> <div class=MsoNormal> </div> <div> <div>David Love <A href="mailto:davidlovepianos@comcast.net">davidlovepianos@comcast.net</A> <A href="http://www.davidlovepianos.com/" target=_blank>www.davidlovepianos.com</A> </div> </div> <div class=MsoNormal style="MARGIN-LEFT: 0.5in">-----Original Message----- From: <A href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</A> [<A href="mailto:pianotech-bounces@ptg.org?"><A class=spell id=sp-11 title="Click here to replace with: 
mail to, Milton, mail, malt, milt, Milo, maillot" href="#">mailto</A>:pianotech-bounces@ptg.org</A>] On Behalf Of <A href="mailto:erwinspiano@aol.com">erwinspiano@aol.com</A> Sent: Saturday, May 17, 2008 7:20 PM To: <A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> Subject: Re: Steinway O revisited</div> <div class=MsoNormal style="MARGIN-LEFT: 0.5in"> </div> <div class=MsoNormal style="MARGIN-LEFT: 0.5in">  David     Since the original rib scale was originally designed to work in conjunction with panel compression stiffness are you concerned  about any potential unwanted soundboard resonance's by retaining the original rib scale placement & same no. of ribs even though they are beefed up to support the entire crown load?    Dale</div> <div id=AOLMsgPart_0_e99e4a05-a9ed-4259-af11-d6008bc55e94><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT> </TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>-----Original Message-----</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>From: <A href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</A> [<A href="mailto:pianotech-bounces@ptg.org?"><A class=spell id=sp-12 title="Click here to replace with: 
mail to, Milton, mail, malt, milt, Milo, maillot" href="#">mailto</A>:pianotech-bounces@ptg.org</A>] On Behalf</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>Of David Love</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>Sent: Saturday, May 17, 2008 11:16 AM</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>To: 'Pianotech List'</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>Subject: Steinway O revisited</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT> </TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>Here's a Steinway O with modifications: transition bridge (old style</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>connection), cut-off, modified bass bridge sans cantilever, adjustable plate</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>mounting system.  Vertical hitches in the plate in the treble section (not</TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>pictured).  Plate goes in today.    </TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT> </TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT>David Love </TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 0.5in"><TT> </TT></PRE></div> <div id=u8CA86A4D8F92420-A90-1360> <div class=MsoNormal style="MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; MARGIN-RIGHT: 0in; TEXT-ALIGN: center" align=center> <HR align=center width="100%" SIZE=2> </div> <div class=MsoNormal style="MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; MARGIN-RIGHT: 0in">Plan your next <A class=spell id=sp-13 title="Click here to replace with: 
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