2.The EDIT and COMPARE Modes

To actually program or edit a voice, you need to enter the EDIT mode. This is done by pressing the EDIT/COMPARE button.

When the EDIT mode is activated, the LCD will indicate the operator ON/OFF status (the group of four 1s or 0s), the currently selected voice parameter, and the currently selected operator. The latter in the series applies only to parameters that deal with individual operators. You will note, also, a capital letter “E” at the left side of the LCD. This indicates that you are in the EDIT mode, but that the voice has not yet been altered, i.e., it is an unedited voice. The last voice selected in the PLAY mode will be selected for editing. The individual voice parameters are then selected by pressing the corresponding voice buttons—all edit parameters are printed in purple above the voice buttons. The selected parameter is then programmed using the DATA ENTRY slider or -1/+1 buttons. The individual parameters will be described in detail below.

Once the EDIT mode has been called and a parameter change has been made, a small letter “e” will appear at the left side of the LCD, indicating that editing is in progress. You can play the DX27 keys and listen to how parameter changes are affecting the voice as you edit. In many cases, you will be editing an existing voice and will want to compare the sound of the edited voice with the original voice. This is done simply by pressing the EDIT/COMPARE button again. The small letter “e” at the left side of the LCD will change to a “C,” indicating that the COMPARE mode has been activated, and that the voice you will now hear is the original voice before editing (the parameters displayed on the LCD will also revert to those of the original voice). You can then return to the voice being edited by pressing the EDIT/COMPARE button again. This can be repeated as many times as needed during the editing process. The COMPARE mode can be entered from the EDIT or FUNCTION modes after at least one data change has been made to the original voice.

The EDIT/COMPARE mode can be exited by entering the FUNCTION mode, or by pressing INTERNAL PLAY and selecting another voice. Please note, that if you exit the EDIT COMPARE mode and then select a new voice, ANY DATA YOU HAVE EDITED WILL BE ERASED!!! This is because all editing is performed in a special edit buffer memory which is the same memory to which a voice is called when its button is pressed. Note that the presence of a small letter “p” at the left side of the LCD means the edited voice has not been stored and will be erased if you select a new voice. To save edited data, you must use the STORE function to save the new data in one of the DX27’s 24 INTERNAL voice memories. The STORE function will be discussed in this chapter. VOICE PROGRAMMING. If you do make a mistake and lose the edited data, the DX27 has been provided with a special temporary buffer memory from which the lost data can be recalled (assuming only one error has been made) using the RECALL EDIT function. The RECALL EDIT function was discussed in CHAPTER III: MEMORY MANAGEMENT.

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