Welcome to the Piano World Piano Forums
Over 2.5 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Gifts and supplies for the musician

SEARCH
the Forums & Piano World

Trying Something New with Search
(125ad)
Piano Life Saver - Dampp Chaser
Dampp Chaser Piano Life Saver
(ad)
Pearl River
Pearl River Pianos
(ad) Pianoteq
(ad) Lindeblad Piano
Lindeblad Piano Restoration
(ad)
Piano Buyer Guide
Acoustic & Digital Piano Buyers Guide
Who's Online
73 registered (Albunea, augustm, AndrewJCW, 36251, Amosdoll, 20 invisible), 1375 Guests and 3 Spiders online.
Key: Admin, Global Mod, Mod
(ad) Estonia Piano
Estonia Pianos
Quick Links to Useful Piano & Music Resources
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers
*Organs

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano & Music Accessories
*Live Piano Venues
*Music School Listings
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Contest
*Links
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
Topic Options
#626010 - 08/24/06 04:32 PM Scale
JohnEB Offline
500 Post Club Member

Registered: 04/20/06
Posts: 754
Loc: Belgium
I should probably have asked this question before, but what is a piano's scale? (Not a musical scale and not how big a piano is, I'm willing to bet). I see it referred to a lot but I've not found an explanation of it. Thanks.
_________________________
John

Top
(ad)
Piano & Music Accessories
piano accessories music gifts tuning and moving equipment
#626011 - 08/24/06 05:45 PM Re: Scale
scutch Offline
Full Member

Registered: 05/04/04
Posts: 347
Loc: california
The scale usually refers to wire sizes - length, diameter and friquency.
In the design process they would start with note C-88 at lets say 53mm long and wire size 12.5 or .03 inch. The tension for this note could be around 170 lbs.
C - an octave below you think would be double the length at 106mm because it is half the frequency - but it is not. If this were practiced then C-1 at the bottom of the piano would be 6784mm in length. This problem is dealth with by increasing the wire diameter while increasing the octave wire length something less than double. In the bass the copper winding is added as the wire length does not get much longer than the lowest tenor note.
The size of the piano greatly influences this design.

Top
#626012 - 08/24/06 05:58 PM Re: Scale
BDB Offline
Yikes! 10000 Post Club Member

Registered: 06/07/03
Posts: 24039
Loc: Oakland
Well. actually you could double the length an octave or more below C-88, and people have. You just start shortening the scale later. However, scale designers have done exactly that, but changed the wire gauge anyway.

Which just goes to show that scale design has evolved. At one point, it just was fitting the strings into the instrument. Then strike point became a factor, and then tensions and other physical properties. But at its heart, the scale of the piano is the way that the strings fit in it.
_________________________
Semipro Tech

Top
#626013 - 08/24/06 08:44 PM Re: Scale
Cy Shuster, RPT Offline
3000 Post Club Member

Registered: 12/18/05
Posts: 3458
Loc: Albuquerque, NM
It also includes the number of trichords, bichords, and monochords, and also which ones are wound (there are wound trichords in some scales).

Some of the problems to manage are to keep the tension in a reasonable percent of the wire's breaking strength (usually around 2/3), to keep inharmonicity reasonable, and also to have all those variables change smoothly throughout the compass (range) of the piano. Here are some sample scales:
http://www.goptools.com/gallery.htm

It's common these days to "rescale" a piano when restringing it, because software is now available to do a better job of managing these variables. Rescaling can be done either with or without changing the length of the strings.

--Cy--
_________________________
Cy Shuster, RPT
www.shusterpiano.com
Albuquerque, New Mexico
Director, PTG Norfolk 2016 Technical Institute
http://convention.ptg.org

Top
(ad 568)
PTG Journal Online
PTG Journal Online
#626014 - 08/25/06 02:03 AM Re: Scale
JohnEB Offline
500 Post Club Member

Registered: 04/20/06
Posts: 754
Loc: Belgium
aha, thanks. That explains it!
_________________________
John

Top
#626015 - 08/25/06 07:15 AM Re: Scale
Les Koltvedt Offline
3000 Post Club Member

Registered: 04/13/05
Posts: 3198
Loc: Canton, MI
interesting CY...thanks

something else to study
_________________________
Les Koltvedt
LK Piano
Servicing the S. Eastern Michigan Area
PTG Associate

Top

Moderator:  Piano World 
What's Hot!!
Italy Members - Please Check In
-------------------
Posting Pictures on the Forums
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

-------------------
Piano Classified Ads
(ad)
Calculator Looks Like Piano Keyboard
Calculator that looks like a piano keyboard
Piano Keyboard Calculator

New in the Piano World online store (PianoSupplies.com) now.
(ad)
Pianist Magazine
Pianist Magazine - Helping you become a better player
(ad)
Teaching Children Music
Teaching Music to Children
(ads)
PD - WNG - MH
PianoDisc
Piano Acc. & Gift Items in
Piano World's Online Store
In PianoSupplies.com ,(a division of Piano World) our online store for piano and music gifts and accessories, party goods, tuning equipment, piano moving equipment, benches, lamps Caster Cups and more.


Free Shipping on Jansen Artist Piano Benches
New Topics - Multiple Forums
digital piano standing vertically - is it OK?
by jeroppi
16 minutes 11 seconds ago
roland lx17 ringing sounds
by nelce
Today at 03:12 AM
Goldfinger (Bond) question
by FrankCox
Today at 01:56 AM
OT Required note/chord
by PhilipInChina
Today at 01:48 AM
S90 ES Switching Patches
by DIDC
Yesterday at 10:19 PM
Forum Stats
84,794 Registered Members
44 Forums
174,796 Topics
2,551,020 Posts

Most users ever online: 15,252 @ 03/21/10 11:39 PM

Visit our online store for gifts for music lovers

 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
|
Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |


copyright 1997 - 2016 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission