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Open Diapason
c° - f³
Stop Diapason stopped wood
Principal GG – BB stopped wood
Fifteenth
Sesquialtera GG 17.19.22, f#° 15.17.19
Cornet c¹ 12.15.17, e² 8.12
A
shifting movement removes Principal, Fifteenth and mixtures.
The key compass is GG AA to f³.
The pitch is A425, with some of the pipes still cut to length, some
tuned with slides.
The tuning was left as equal temperament, to disturb the pipework
as little as possible.
Wind pressure 58mm
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