[pianotech] What is bloom,

[Dale Erwin]

David
  Good descriptive of Bloom.
  And no matter it can't be quantified, we all pluck strings and listen to this phenomena. IMO it is the bloom that  gives a piano its distinctive voice.  I looked a t 6 ft Sojin yesterday 15 years. Fantastic singing voice with excellent bloom. I've heard few any better.
 The weak spot in these pianos is always the hammers and bass strigns. Had a nice tight grain Sitka board. Heavy sand cast plate. No compression ridges.  I don't know how they make there boards but ...its working. Great impedance balance! Who woulda thought?

 

 

Dale S. Erwin
www.Erwinspiano.com
Custom restoration
Ronsen Piano hammers
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-----Original Message-----
From: David Love <davidlovepianos at comcast.net>
To: pianotech at ptg.org
Sent: Thu, Mar 17, 2011 7:48 am
Subject: Re: [pianotech] What is bloom,



Oh and let me add (just to get started) a system that has just the right impedance characteristics to provide a balance between power and sustain.   
 
Bloom, then, is that characteristic that some soundboard systems have in which the smallest amount of energy input gets the system moving while at the same time the system won’t give up its energy too quickly.   The why (as JD asked) has to do with the physical characteristics of the soundboard (and scale) that allow that make that happen.    Not an adequate or complete description, I realize, but until one defines what bloom is it will be difficult to describe what causes it, or better, allows it.  
 
Feel free to correct, modify or add.  
 

David Love
www.davidlovepianos.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of David Love
Sent: Thursday, March 17, 2011 7:31 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] What is bloom,

 
OK then let me start this by offering one criteria that might impact this particular quality.  Optimizing the stored potential energy in the soundboard/string system.  
 

David Love
www.davidlovepianos.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Delwin D Fandrich
Sent: Wednesday, March 16, 2011 3:11 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] What is bloom, was RE: Tuning the duplex sections

 
Not having ever been able to measure this…I don’t.
 
ddf
 

Delwin D Fandrich
Piano Design & Fabrication
6939 Foothill Court SW, Olympia, Washington 98512 USA
Phone  360.736.7563 — Cell  360.388.6525
del at fandrichpiano.com — ddfandrich at gmail.com

 
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