[CAUT] Tuning the rear duplex

[Ron Nossaman]

> I checked a Steinway D at one school and the rear duplex was tuned to 
> the speaking length fundamental for the last few notes.  At another 
> school the rear duplex ranged from a minor 2nd to a major second for 
> those same last few notes.  I tried tuning them and managed to pull the 
> major second one down to a 1/4 tone sharp after tuning the speaking 
> length.  It wouldn't stay down and I'm wondering about stability for the 
> speaking length now.  I'm guessing this one is going to need some moving 
> to tune a little closer.
> 
> Observations?
> 
> Andrew Anderson

If the makers of the piano standard for the world haven't 
figured out by now where to place their own duplex bars, I'd 
think it's pretty much on you if you must insist that their 
placement makes some sort of musical sense. As tuning them 
makes the result pretty much your responsibility, I wish you 
the best of luck.

An observation from one perspective.
Ron N