David Sharpe's query to the 110801 MMD is a valid one, as to why the
conductor appears to be off the beat.  Below the video someone tries to
answer that very question, rather vaguely.  He maintains that it is
because of the arrangement: some organs follow the bass drum for the
beat, while others follow the bass notes.

That very well may be only part of the problem.  If you notice amongst
different organs, the conductor's baton is at rest either in the full
up position, or the full down position.  The arranger may have not
taken this into consideration when punching the conductor's beats in
the book.

The conductor on the Arab appears to start with the baton at rest in
the down position; so the actual beat of the music is realized when the
baton is fully up, thus making it appear that the conductor is keeping
time at the down beat.  Possibly not all the books are scored this way,
and only a few make the conductor seem off tempo.  But if this is not
the case, and all books have the same problem, then the remedy for this
is to reverse the linkage of the baton arm, so that the baton is at
rest in the up position.

Dale F. Rowe
Bronx, NY