Soprano is very famous when it comes to Terton, but the other 9 out of his 10 existing recorders are altos. This model is based on the Rijksmuseum collection in Amsterdam, the Netherlands, and the characteristic sweet and dense tone of Terton is alive even in alto.
Like the soprano, it seems that the extremely sharp chamfer on the side of the wind-way exit plays an important role in achieving that tone. This chamfer angle may no longer be the identity of the Terton model.
Since the original is pitched at a'=415Hz, it can correspond to the modern baroque pitch without modification.
Sonata X "Ciacona" ／ Gottfried Finger
Instrument Used：Terton Alto in F, a’=415Hz（by Seiji Hirao）
played by Kôske Nozaki
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