Tone control device

A computer storage device including program code executed by a processor for generating a tone and in communication with a tone generation device, a pipe controller controlling a plurality of pipes for producing sound, a plurality of keyboards each having keys, and manipulators for selecting ranks of pipes to generate sound, wherein the code is executed to perform operations, the operations comprising:

• providing a data structure in the computer storage device indicating for each of the manipulators:
• a belonging keyboard indicating one of the keyboards;
• one of the ranks of pipes to play for the manipulator;
• a pipe stop switch set to ON or OFF in response to selection of the manipulator;
• and
• fixing switches indicating whether keys on the belonging keyboard selected are available or unavailable;
• and
• causing the pipes in a selected rank of the ranks to generate a tone for a depressed key in response to determining that the data structure indicates for one of the manipulators the selected rank, the belonging keyboard as the keyboard including the depressed key, that the pipe stop switch as ON, and that the fixing switch for the depressed key indicates that the key is available.

A computer storage device including a data structure processed by program code executed by a processor for generating a tone from one of a tone generation device and a plurality of pipes, wherein the tone may be selected from one of a plurality of keyboards each having keys, and wherein manipulators are used for selecting ranks of pipes to generate sound, comprising:

• entries in the data structure indicating for the manipulators;
• a belonging keyboard indicating one of the keyboards;
• one of the ranks of pipes to play for the manipulator;
• a pipe stop switch set to ON or OFF in response to selection of the manipulator;
• and
• fixing switches indicating whether keys on the belonging keyboard selected are available or unavailable;
• wherein the entries in the data structure are processed to select one of the ranks of pipes and the tone generation device to produce sound for a depressed key on one of the keyboards.