------------39BC73F719400 Dear Charles Another thought regarding your Bosendorfer and tuning the first bass strings (there are 97 notes on an Imperial for anyone who is not aware of the Imperial). There are 2 or 3 technics that you may try. First: if you are using the SAT try plucking the strings with you fingernail or other appliance about an inch from the agraffe. This will excite higher partials and make the signal stronger to the SAT. Tune the octave by striking one of its coincident partials. In this area a 10-5 is preferable. Hold the damper open and strike the relative partial. Example: If you are tuning C1, press and hold down keys C1 and C2. Strike E5 and listen for a beat originating from the 10 partial of C1 and the 5 partial of C2. Tune C1 as though it were a unison. Continue down scale. The frequency of the first notes are about 9 cps for whatever that means and increases by the 12th root of 1.89 as it ascends. You can duplicate this aural process by direct measure using the Acctuner or other similarly function ETD. Set the SAT to E4. Strike C2 and stop the lights. It may be necessary to pluck the string by the above mentioned method. Now tune C1 to this calibrated setting. Continue down the scale. After you have done this absolutely no one will know that these strings are now in tune since I am not aware of any music having been written for the notes. Some say that the musician can use the notes for organ pedal tones. Who knows? or cares. If you would like to know why Bosendorfer added the addional strings that would be fodder for another discussion. Incidentally for anyone who hasn't read the SAT manual or cannot understand Dr Sanderson's unique way of explaning its use, direct measure is a remarkably accurate method of tuning the top octaves. Whether you prefer a 2-1, 4-2, or 4-1 octave. Let you ear dictate how to bias the SAT. (Absolutely no disrespect to Dr. Sanderson. He is quite simply one of the greatest persons I have ever had the priviledge to know. Regarding the tuning pins the Bosendorfer has an open face pin block with no bushings, obviously. What is not commonly known is that the Kimball technicians (???) have, on some pianos which have been returned for repair for soundboard or pin block repair, have restrung said pianos. If you are among th privileged to service one of these, inspect tuning pin height, coil height and tightness. If they are to high (ref: Steinway K and X model uprights) you will have springs instead of tuning pins. Good craftsmenship dictates the resolution. Enough rambling Lee Sankey LSankey @swbell.net ------------39BC73F719400 <HTML><BODY> <DT>Dear Charles</DT> <DT> </DT> <DT>Another thought regarding your Bosendorfer and tuning the first bass strings (there are 97 notes on an Imperial for anyone who is not aware of the Imperial). There are 2 or 3 technics that you may try.</DT> <DT> </DT> <DT>First: if you are using the SAT try plucking the strings with you fingernail or other appliance about an inch from the agraffe. This will excite higher partials and make the signal stronger to the SAT.</DT> <DT> </DT> <DT>Tune the octave by striking one of its coincident partials. In this area a 10-5 is preferable. Hold the damper open and strike the relative partial. Example: If you are tuning C1, press and hold down keys C1 and C2. Strike E5 and listen for a beat originating from the 10 partial of C1 and the 5 partial of C2. Tune C1 as though it were a unison. Continue down scale. The frequency of the first notes are about 9 cps for whatever that means and increases by the 12th root of 1.89 as it ascends.</DT> <DT> </DT> <DT>You can duplicate this aural process by direct measure using the Acctuner or other similarly function ETD. Set the SAT to E4. Strike C2 and stop the lights. It may be necessary to pluck the string by the above mentioned method. Now tune C1 to this calibrated setting. Continue down the scale. After you have done this absolutely no one will know that these strings are now in tune since I am not aware of any music having been written for the notes. Some say that the musician can use the notes for organ pedal tones. Who knows? or cares. If you would like to know why Bosendorfer added the addional strings that would be fodder for another discussion.</DT> <DT> </DT> <DT>Incidentally for anyone who hasn't read the SAT manual or cannot understand Dr Sanderson's unique way of explaning its use, direct measure is a remarkably accurate method of tuning the top octaves. Whether you prefer a 2-1, 4-2, or 4-1 octave. Let you ear dictate how to bias the SAT. (Absolutely no disrespect to Dr. Sanderson. He is quite simply one of the greatest persons I have ever had the priviledge to know.</DT> <DT> </DT> <DT>Regarding the tuning pins the Bosendorfer has an open face pin block with no bushings, obviously. What is not commonly known is that the Kimball technicians (???) have, on some pianos which have been returned for repair for soundboard or pin block repair, have restrung said pianos. If you are among th privileged to service one of these, inspect tuning pin height, coil height and tightness. If they are to high (ref: Steinway K and X model uprights) you will have springs instead of tuning pins. Good craftsmenship dictates the resolution.</DT> <DT> </DT> <DT>Enough rambling</DT> <DT> </DT> <DT>Lee Sankey</DT> <DT>LSankey @swbell.net</DT> </BODY> </HTML> ------------39BC73F719400--
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