Hamburg Steinway "D" bass (wound string) Buzz

[Cy Shuster]

I don't remember the scale of a D; are there any wound strings on the treble
bridge?  If so, do they also buzz?  If not, then maybe that points to
something loose on the bass bridge.  This would explain the "wound strings
only" symptom, and also why replacing strings doesn't fix it.

Is there another D you can swap a string with?  In debugging, it's useful to
try to recreate the problem in a working environment, as well as trying to
fix the problem in a failing environment.

It's also useful to go back and simply state your observations in as simple
a way as possible, without leading towards a particular answer.  This might
give someone a different clue.

--Cy Shuster--
Bluefield, WV