Just like the great organ builders in the old days were very inventive and kept seeking ways to improve their products, we keep up with new technical developments such as computers and complex electronics. In 1892 Anselmo Gavioli applied the traditional book system to his organs which had an enormous impact. Nowadays it is possible to replace this book-steering mechanism, the key frame, by midi-steering, which works through electromagnets.

The advantages of midi-steering are various: a still more exact steering than the key frame, the saving of expenses (organ books are not needed), saving of space and the fact that an organ can play non-stop for a long time (there is plenty of room for many midi-files on a disc or cd-rom).

In recent years we have built a midi-system in a number of organs, by putting a mechanism into the organ that replaces the old key frame (see photographs). It is likewise possible to rebuild an organ in such a way that playing organ books will still be possible. Such a rebuild is never irreversible: the organ can always be brought back into its original state.

We also have built some new organs with the midi-system, such as the big concert organ for the cruise ship "MS Zaandam".