I found the same sheet as the one in this video on this french site : www.laflutedepan.com/partition/149110/hummel-grand-concerto-bassoon-piano-partition-basson-piano.html If you don't want to click on the link, you can find it on the internet by searching for 'La flûte de pan musique" then you open the web site and search for it Hummel grand concerto basson and you will find the sheet.
Martin's technique is amazing but man, the sound here is so blocky and heavy. This piece is so busy you need that transparency and grace, and that's just not happening here
