Adding to Rob Case's little bibliography of important mechanical music
reference books, I'd include the very early but seminal band organ book
by Eric V. Cockayne, "The Fairground Organ," as well as "Put Another
Nickel In," by Q. David Bowers.  Then for people really into the
musico-mechanics of these instruments there is the indispensable
tracker scale book, "Treasures Of Mechanical Music," by Reblitz and
Bowers.

There are probably others that I don't think of at the moment.

Forthcoming are Arthur Reblitz's new book (Art will have to supply us
with particulars as to title, content, projected date), which I'm sure,
judging from the depth of Art's knowledge and the quality of his
writing, will prove to be a valuable contribution to the history of
mechanical music.  Also, as has been mentioned here recently, Herbert
Juettemann's "Waldkircher Dreh- und Jahrmarkt-Orgeln" will be coming
out in both a revised 2nd edition and also in an English translation
for the first time ever.  There are also reports from England about
the Cockayne book being re-issued, though I don't recall whether that
will be a straight unrevised reprint or an updated edition.

Perhaps the seed that Rob Case planted with his note of yesterday could
grow into an annotated bibliography of the subject.  Annotations would
be valuable because often the content and scope of a work is not
conveyed by its title.  For example, one might think that "Treasures
of Mechanical Music" is simply a reworking of the Bowers
"Encyclopedia."  But it is not that in the least, standing as an
essential reference in its own right and complementing the
"Encyclopedia" by presenting entirely different data.

Matthew Caulfield