Bluthner grand

[Newton Hunt]

Some Bluthners (pronounced Blootner, like boot) have aliquot strings,
some do not.  Many of those that do have a secondary bridge in the
tenor section which divides the aliquot string in half.  Those are
tuned at an octave above the unison.  Those in the high treble are
tuned as unisons.

Because of inharmonicity the octave aliquots will have a beat in the
higher partials that cannot be removed.  Be aware of this and set the
aliquots to a good first and second partial.  You may not notice this
difference except on the concert grands.

Also examine the pinblock and the bridges carefully for cracks, splits
and delaminations.

		Newton