Piano, Organ, and Keyboard/Chickering Piano Scale 67


We have a Chickering upright serial number 52634 and Scale 67. I have seen references to Scale 67 B and BB but not to Scale 67 by itself. Will you tell me what Scale 67 is referring to?

Hi Paul:

Your piano built in 1878 has a scale designation that refers to the design of the progression of strings, from bass to treble with regard to speaking length, diameter of the solid wires, and core diameter and copper wrapping of the bass wires.

Your #67 is the "original" scale while the others are revisions.

Along the way, a piano manufacturer may decide to make an improvement in the scale with regard to note to note transition, volume, sustain, etc.

I hope that helped!

Piano, Organ, and Keyboard

All Answers

Answers by Expert:

Ask Experts


Ralph Onesti


I am a Registered/tested member of the Piano Technicians Guild (RPT) with 49 years of experience in all phases and levels of the acoustic piano. I will answer any questions regarding acoustic pianos only. All questions and answers are to remain public. Please to not include sensitive material! If they are marked private, I will change them to public. My answers may be of assistance to others. If privacy is an issue, please contact me through my web site: http://www.onestipiano.com Electronic keyboards, organs, and player/reproducing piano mechanisms are outside of my expertise. Anything to do with: Construction, Service, Tuning, Climate Control Systems, Piano Disc, Purchasing, Selling, Insurance Appraisal, Rebuilding, Repairs, Legal issues, Maintenance, Environmental issues, Finish issues with acoustic pianos. My full resume can be found at: http://onestipiano.com/pages/history.html You can like us on Facebook at: http://www.facebook.com/onestipianoservice


In business since 1964, Extensive Rebuilding/Repair/Service facility. A certified, tested, member of the Piano Technicians Guild, Member of the Technical Advisory Service to Attorneys. Have performed piano service on Concert Stage, Recording Studios, and in the home. Http://www.onestipiano.com. The shop's work comes from all over the world from private clients or other techncians.

The Piano Technicians Guild, Master Piano Technicians of America, Technical Advisory Service to Attorneys. (TASA), IAPBT. The Piano Technicians Guild is the only organization in the US that offers a certification test to become Registered. There are no "factory authorized techncians".

The Piano Technicians Journal

Attented Temple University, Drexel University, Philadelphia Community college all in the areas of engineering and Music. I taught a two semester course in Piano Technology and the related acoustical physics at Temple University. I have taught extensively for the Piano Technicians Guild and the Master Piano Technicians of America.

Awards and Honors
Service Award for the Rose Tree Media School District in Pennsylvania. Chapter Award from the Philadelphia Chapter of the Piano Technicians Guild.

Past/Present Clients
The list is rather extensive. I would suggest you go http://onestipiano.com/pages/testimonials.html where there is a comprehensive list of clients past and present.

©2016 About.com. All rights reserved.