From: Ann Wells
Date: Thu, 9 Sep 2021 20:11:59 -0400
On Tue, Sep 7, 2021 at 10:55 AM Becky Luce
wrote:
> Just a question...what good will bell covers do if the air is escaping the
> instrument before it reaches the end of the instrument? Thanks,
> Becky in NH
>
>
>
One of the performing arts aerosol studies they did addressed this - I
believe they determined that woodwind keyholes did not appreciably
contribute to aerosol spread. (But tested with a clarinet, so recorder
mileage may vary...)
https://www.nfhs.org/articles/unprecedented-international-coalition-led-by-performing-arts-organizations-to-commission-covid-19-study/
is the page with links to all the information - I haven't looked at it in a
while, turns out the study was officially published last week and it's
available to the public - there's a link to it if you want to wade through
all the research verbiage. Anyway, at the link above, if you go down to the
info on the 3rd preliminary results release, that is where the keyhole
emissions thing was first discussed.
As for aerosol emissions from the window of the recorder, they also
recommend playing through a slit cut in a mask so presumably that part of
the recorder would be inside the mask, maybe?
~Ann in NC
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