French baroque bassoon after Prudent Th.

Soundtrack:  Danny Bond, Première Sonate for bassoon,E.Ozi

Paris c. 1770

About the Prudent Thierriot replica: My copy of the Prudent Thierriot bassoon is based on an instrument made in the second half of the 18th century in Paris, now in the collection of the Brussels Conservatory museum.
The instrument was the subject of a paper on Acoustics and Mathematics at Nijmegen University(Holland) by Jos de Lange, bassoonist with the Koninklijk Concertgebouw Orkest, Amsterdam.
De Lange found that this instrument is very suitable for baroque music because of the position of the formants (certain groups of harmonics with a relative higher sound pressure) in the sound spectrum of the instrument. The sound is, in fact, similar to that of instruments of the 1st half of the 18th century. The Prudent bassoon  has 5 keys.