I have recently added a 7-rank Aeolian player pipe organ with harp and
chimes to my collection.  I could use some advice from other MMDers who
have some experience with these things, as I am a total novice when it
comes to pipe organs.

It came with the original electro-pneumatic switching unit and a newer
1970's vintage solid state switching unit.  Are there any thoughts as
to which one I should use or should I get rid of both of them in favor
of one of the new computerized systems that lets me play the organ
using MIDI files?  The original unit is quite a piece of craftsmanship
and even has glass windows so you can watch it operating.  Has Larry
Broadmoore invented a PowerRoll for Duo-Art Organs?

My second question has more to do with aesthetics and tonal structure.
I like the theatre organ sound just as much as I like the classical
organ sound so I'm considering adding a rosewood xylophone and a few
ranks of theatre organ pipes.  Most organ builders cringe at the
thought of this.  (Keep in mind that most organ builders consider theater
organs totally bereft of any musical value).

Has anyone out there tried this and if so, how did you like it?  Please
keep in mind that none of the pipework or chests that came with this
organ are original so I wouldn't be bollixing up a pristine instrument.

Lastly, is there someone out there who is good at repairing damaged metal
pipes or knows some tricks of the trade?  I have a few that are dented
and out-of-round.  The organ did come with an original test roll but
something tells me I won't be needing it for awhile...

Thanks for your comments and insight!

Bruce Newman