That, being my birth month, is the time when I do all my voicing... David Ilvedson, RPT Pacifica, California ----- Original message ---------------------------------------- From: "David Ilvedson" <ilvey@sbcglobal.net> To: tune4u@earthlink.net, pianotech@ptg.org Received: 1/6/2006 7:58:16 PM Subject: RE: Cracking the unisons >Do I really have to? >David Ilvedson, RPT >Pacifica, California >----- Original message ---------------------------------------- >From: "Alan Barnard" <tune4u@earthlink.net> >To: "ilvey@sbcglobal.net, Pianotech <pianotech@ptg.org> >Received: 1/6/2006 1:04:06 PM >Subject: RE: Cracking the unisons >>I'd be happy to comment on this heresy if I understood it. Let me just say, >>"Huh?" >>Describe Snap and Pop, please. >>BTW, do you know how you can tell your breakfast cereal is stale? It goes >>snab, crabble, bah. >>Alan Barnard >>Salem, Missouri >>> [Original Message] >>> From: David Ilvedson <ilvey@sbcglobal.net> >>> To: <pianotech@ptg.org> >>> Date: 01/06/2006 12:54:00 AM >>> Subject: RE: Cracking the unisons >>> >>> OK, I've got add something to this idea. There are three methods of >>hammer technique in this same vein...the first and less understood is >>"snapping" the unison. This is accomplished with very quick hammer >>movement, ala snapping...Cracking the unison is the 2nd technique as stated >>below...well put. The third technique is popping the unison, where you >>hold the pitch above and "pop" it down into a heavenly unison. Many >>technicians use all three with "snap, crackle and pop the unison" >>> >>> You may banish me from the List... >>> >>> David Ilvedson, RPT >>> Pacifica, California >>> >>> >>> >>> ----- Original message ---------------------------------------- >>> From: "Greg Graham" <grahampianos@yahoo.com> >>> To: pianotech <pianotech@ptg.org> >>> Received: 1/5/2006 2:13:51 PM >>> Subject: Cracking the unisons >>> >>> >>> >I'm hoping someone will take a stab at a detailed >>> >definition of "Cracking The Unisons". >>> >>> >I've checked the archives, and lots of people mention >>> >Virgil Smith's technique, some claim to use it, only a >>> >few have partially described it, and I suspect I'm >>> >still not getting it. >>> > >>> >As I understand it: If a three-string unison is found >>> >to be slightly flat or sharp compared to a test >>> >interval or two, you adjust the first string without >>> >muting the other two, then adjust the remaining >>> >strings to clean up the unison. >>> >>> >Reasons for doing this: It's faster than messing with >>> >mutes, it produces better unisons, it avoids the >>> >"Virgil Smith Phenomenon" of a unison going flat when >>> >all three strings are vibrating compared to a single >>> >string of the unison by itself. (Please, let's not >>> >debate the phenomenon. I'm just asking about >>> >cracking.) >>> >>> >Is this all there is to the technique? I presume the >>> >hard part is being able to hear the beat clear up on >>> >the 2nd string while the 3rd is still beating away, >>> >akin to dealing with false beats. >>> >>> >Some of the unanswered questions (in my mind): >>> >>> >1. How big an adjustment to the unison are we making >>> >when using the cracking technique? One BPS? Half a >>> >beat? One beat in 15 seconds? >>> >>> >2. Do we move the 1st string to create a beat rate >>> >matching the out-of-tuneness of the unacceptable test >>> >interval, or is there some other method at work? If >>> >the 5th is beating about 1/2 BPS too fast, do we >>> >create a 1/2 BPS unison, then move the other two >>> >strings to eliminate the beat? >>> >>> >3. The single vs. three string pitch change "Virgil >>> >Smith Phenomenon": How big a change are we talking >>> >about? I've read 0.1 to 0.3 cents. >>> >>> >How close is "close enough"? I know I'm not yet good >>> >enough to hear some of these small errors in unison >>> >tuning. I don't know if I could tune two strings to >>> >0.25 cents accuracy while the third was 1.0 cent out. >>> >Heck, who am I kidding? Sometimes I don't hear the 1 >>> >cent error, especially in upper octaves. 0.25 cents >>> >mid keyboard is about one beat in 16 seconds, right? >>> >Is that the kind of accuracy we are talking about >>> >here? >>> >>> >I need to see and hear this demonstrated someday, but >>> >I'm hoping someone on the list who is a "crack addict" >>> >can help me with a better written description. The >>> >archives need clarification, as do my unisons. >>> >>> >Thanks, >>> >>> >Greg Graham >>> >Brodheadsville, PA >>> >One tuning exam (and several months) away from >>> >RPT-dom. >>> >>> >>> >>> >>> > >>> >__________________________________________ >>> >Yahoo! DSL – Something to write home about. >>> >Just $16.99/mo. or less. >>> >dsl.yahoo.com >>> >>> >_______________________________________________ >>> >pianotech list info: https://www.moypiano.com/resources/#archives >>> _______________________________________________ >>> pianotech list info: https://www.moypiano.com/resources/#archives >>_______________________________________________ >>pianotech list info: https://www.moypiano.com/resources/#archives >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives
This PTG archive page provided courtesy of Moy Piano Service, LLC