Yes, it *is* the Horowitz Marr & Colton that is on the Siou tape that
was mentioned here a few days ago.  I had forgotten whose organ it was,
until the mention of Horowitz.  The information that was also provided
about its location and history was new to me, and welcome.

The sound is much fuller and more imposing than a that of a band organ,
due I suppose to the number of pipe ranks at the command of the 165
roll.  When a Wurlitzer APP (Automatic Player Piano) roll drives the
instrument, the piano sound is predominant, but it is backed up by a
much more solid pipe accompaniment than you'd get with any orchestrion.

I once owned a Wurlitzer 146A band organ, and had always assumed that
the music in the style 150 roll which it played was pretty thin
compared to the music in the 165 rolls which I had grown up with or
with the music in European books I had heard.  At least that's what I
thought until I heard those same style 150 rolls played on John
Malone's W165 band organ, which has tracker bars to play any size roll.
That showed how wrong my assumption was.

What I know now is that the number and character of the pipe ranks in
an organ has more to do with the music you get out of the cardboard or
paper into which the music is punched than anything else.

Matthew Caulfield