The bassoon effect on Mozart’s Fortepiano

The raucous knee pedal effect on the fortepiano that Mozart would have been familiar with.
Any other ideas what it might have been used for?

Hear the fortepiano played in Mozart's Piano Concerto No.23 at Southbank Centre’s Queen Elizabeth Hall on 5 April with soloist Kristian Bezuidenhout.

[oae]

Any other ideas what the knee lever was used for?

[alexg.]

The close up on "most of the time" was gold

[Baccatube]

"Fagotto" originally means something like "twig bundle" (and if you look at a bassoon, this makes sense) - the sound is like the strings are being stroken with a broom.

[auralarchipelago]

It sounds incredible - I know he's being facetious, but I wish he could introduce this totally unique sound in a more evenhanded way.

[ericoschmitt]

Classical musicians underestimate the inventiveness and spontaneity past musicians had.

[TheAndrewSchneider]

I have actually seen a Hummel piano work where the Fagotto stop is explicitly called for by name.

[matthew_pauls]

Probably just for playing basslines, as an option anytime that the fortepiano was still used for continuo for example

[emefcue]

I like the sound. Is that really mozarts fortepiano?

[ohstirfry]

Distortion…. He wasn’t think that hard

[mlclyw]

perfect for making sounds ugly, annoying and horrible. We need that right now for today's humor elaboration. no wonder no one can actually perform this piece nowaday.🤣