My note, now in the MMD archives, about the book music masters
("Schablonen") which Keller & Kern acquired in 1993 via the estate of
Carl Frei has prompted three inquiries to me for more information.  So
I am providing some here.

Gerhard Kern's address is:
    Am Ziegelgrund 26
    D-50170 Kerpen-Buir
    Germany

    phone: 02275-6778
    fax 02275-4783

He also has a webpage:

        http://ourworld.compuserve.com/homepages/gkern/

which gives a complete list of all the organ styles for which
Schablonen are available.  Additionally, as their printed catalog
states, they are prepared to furnish adaptations (arrangements) for
other organs as well as MIDI transcriptions.

Gerhard Kern's email address is:
    101670.1066@compuserve.com.geentroep [ drop .geentroep to use ]

Matthew Caulfield