Here are the "inventors" desciption:

Hi Scott, it was I who made the Tyros Brackets and posted
the photo.
The reason was to raise the stand as it gave you a crink in
the neck being so low.
I used a U shaped aluminium extrusion which is 15mm wide
and 6mm deep. The screw heads fit well into the channell.
I put the end of the extrusion in to a vice and closed it up
to form a strong end. I then drilled it out with a 5.5mm drill
to give a tight fit to the stand pegs.
After posting the photo I made a further one with longer legs
to raise the music even higher. It endures wear and tear to
this day.
Best wishes to you and the great Tyros Group which I am
proud to read and enjoy
Jack Oliver

Hi Scott, thats correct the music stand pins fit the brackets direct.
They
are very strong as there is quite
a stress on them, particularly with the longer later model
one. I made 3 sets for my friends with Tyros here in the
South Island of New Zealand. I then ran out of material
which I already had. My location is in Christchurch on the
east coast of the South Island.
My wife Lorraine is the organist with an EL 70 and a Tyros. We have a
large
Electronic Organ Society here
with 250 members. There are groups in all the main centers in both
Island
Best Wishes
Jack Oliver
PS There are 3 pictures on Tyros world showing the
brackets, front and rear and a close up.