Welcome to the Piano World Piano Forums
Over 2 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!

SEARCH
the Forums & Piano World

This custom search works much better than the built in one and allows searching older posts.
(ad 125) Sweetwater - Digital Keyboards & Other Gear
Digital Pianos at Sweetwater
(ad) Pearl River
Pearl River Pianos
(ad) Pianoteq
Latest Pianoteq add-on instrument: U4 upright piano
(ad) P B Guide
Acoustic & Digital Piano Guide
PianoSupplies.com (150)
Piano Accessories Music Related Gifts Piano Tuning Equipment Piano Moving Equipment
We now offer Gift Certificates in our online store!
(ad) Estonia Piano
Estonia Piano
Quick Links to Useful Stuff
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 Accessories
* 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
Page 2 of 2 < 1 2
Topic Options
#642438 - 01/30/09 11:31 PM Re: Piano Changing Pitch 6 Cents in 10 Minutes!?
straightclaw Offline
Full Member

Registered: 12/02/08
Posts: 25
Loc: Indiana
Interesting techniques on pitch raising that I have never heard. I will have to experiment with some of these methods.

Regarding original post:
I just wanted to thank everyone for helping me with the Whitney Spinet pitch drop episode. I don't know when I'll see this piano again, but I will let you know what I find out. One thing I did notice is that after the forced air heat stopped blowing, the pitch of the strings came up from 6 cents flat to about 3 cents flat, but I didn't stick around to see what happened after that. I plan on returning on a warmer day.
_________________________
Learning to Tune.

Top
(ad PTG 568) Grand Action Regulation in 37 Steps
Grand Action Regulation in 37 Steps
#642439 - 02/01/09 12:30 AM Re: Piano Changing Pitch 6 Cents in 10 Minutes!?
vince mrykalo Offline
Full Member

Registered: 03/23/04
Posts: 52
Loc: Utah
Referring back to the original post, even tho it's a Whitney spinet, it shouldn't have dropped like that. I concur that it's probably structural. No one has yet mentioned pinblock separation from the back. Also a plate crack may be developing at the treble strut.
_________________________
Vince Mrykalo RPT MPT
Piano Technician University of Utah

Top
#642440 - 02/01/09 09:36 AM Re: Piano Changing Pitch 6 Cents in 10 Minutes!?
nhpianos Offline
Full Member

Registered: 01/15/07
Posts: 99
Loc: NH/US
 Quote:
Originally posted by RonTuner:
Going back to your first post...

Forced air heat? Sun moving across the board? A big change of temp, or sunshine could certainly cause some issues - especially if you noticed everything from A0 up to C5 or so moving.

Ron Koval [/b]
I have seen even high quality pianos (Steinway B's & D's, Yamaha C7's) move several cents in as little as a minute or two when there is airflow around the piano such as forced hot air or AC. In one case the piano was a good 12' from the FHA floor duct and had a full DC with bottom cover. This was in a recording studio where the HVAC was just maintaining a normal temperature, not changing it. It's easy enough to check for this effect - just monitor A4 using your EDT while the HVAC is cycling on and off.

- Mark
_________________________
Mark Dierauf, RPT
NH Pianos
Piano technician & rebuilder since 1978
www.nhpianos.com

Top
#642441 - 02/01/09 04:37 PM Re: Piano Changing Pitch 6 Cents in 10 Minutes!?
straightclaw Offline
Full Member

Registered: 12/02/08
Posts: 25
Loc: Indiana
 Quote:
Originally posted by nhpianos:
 Quote:
Originally posted by RonTuner:
Going back to your first post...

Forced air heat? Sun moving across the board? A big change of temp, or sunshine could certainly cause some issues - especially if you noticed everything from A0 up to C5 or so moving.

Ron Koval [/b]
I have seen even high quality pianos (Steinway B's & D's, Yamaha C7's) move several cents in as little as a minute or two when there is airflow around the piano such as forced hot air or AC. In one case the piano was a good 12' from the FHA floor duct and had a full DC with bottom cover. This was in a recording studio where the HVAC was just maintaining a normal temperature, not changing it. It's easy enough to check for this effect - just monitor A4 using your EDT while the HVAC is cycling on and off.

- Mark [/b]
Good Idea Mark. This is what I was considering... monitor the A440 and other notes as the temperature cycles in the room and while I'm there inspect for structural issues.
_________________________
Learning to Tune.

Top
Page 2 of 2 < 1 2

Moderator:  Piano World 
What's Hot!!
HOW TO POST PICTURES on the Piano Forums
-------------------
Sharing is Caring!
About the Buttons
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

The world's most popular piano web site.
-------------------
PIANO BOOKS
Interesting books about the piano, pianists, piano history, biographies, memoirs and more!
(ad) HAILUN Pianos
Hailun Pianos - Click for More
Ad (Seiler/Knabe)
Knabe Pianos
Sheet Music
(PW is an affiliate)
Sheet Music Plus Featured Sale
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
(ad) Lindeblad Piano
Lindeblad Piano Restoration
Who's Online
119 registered (Al LaPorte, accordeur, A Guy, 42 invisible), 1295 Guests and 23 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
76053 Members
42 Forums
157255 Topics
2309735 Posts

Max Online: 15252 @ 03/21/10 11:39 PM
New Topics - Multiple Forums
Should I pursue piano?
by arpan70
09/03/14 01:05 AM
An edifying challenge
by BDB
09/02/14 11:44 PM
Steinway or Porsche?
by Jennymomofboys
09/02/14 10:16 PM
Shostakovich Prelude 4 (E minor)
by johnlewisgrant
09/02/14 09:24 PM
Help!
by MandyD
09/02/14 09:09 PM
(ads by Google)

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 - 2014 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission