Uploaded July 2020 | Updated September 2026, 11 hours ago

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Performer's Website: kristianomaronnes.com
Facebook: facebook.com/omaronnes
The Expanded Bassoon Register: kristianomaronnes.com/methodes

Please be aware that after having drilled a second octave hole in your bocal, then this bocal will be bad in the lowest register. How to solve / improve this is mentioned in the book.
Thanks to Aleksandr Ziva for showing how he made his high note bocal according to "The Expanded Bassoon Register".