Chapter 6: Advanced KeyStudio Keyboard Features 23
To change the MIDI Channel using the MIDI Channel keys:
1 Press the Edit Mode button.
2 Press the corresponding MIDI Channel key for the channel you want to choose.
Your KeyStudio keyboard will exit Edit Mode as soon as the key is pressed.
Program Change
If for example, you are using a General MIDI software instrument, and know the exact instrument
preset (program) you want to use, you can enter it directly using the “DATA = PROGRAM” key (F#4)
and the numerical Data Entry keys G3 – B4 (0 – 9).
The following example shows you how to use these keys to call up the General MIDI Cello sound
(p42).
To choose a new instrument program using the “DATA = PROGRAM” and Data Entry keys:
1 Press the Edit Mode button.
2 Press the “DATA = PROGRAM” key (F#4).
3 Press D4 key (the number 4) then B3 key (the number 2).
4 Press the “ENTER” key (C5).
A Program Change message selecting General MIDI program 42 (Cello) is sent from your keyboard as
soon as the “ENTER” key is pressed.
Bank LSB and Bank MSB
As mentioned earlier in this chapter, Program Change is the most common message for choosing in-
strument presets. However, the number of presets accessible using only the program change MIDI
command is limited to 128. Since some instruments have more than128 presets, they require a
method to organize them into banks.
In this case a Bank LSB (Least Significant Byte) or Bank MSB Change (Most Significant Byte) change
message must be sent to access the bank containing the sound you wish to play. Once this has hap-
pened you will need to use a Program Change message to load the preset.
A full list of General MIDI instruments and program numbers can be found in Appendix A, “General
MIDI Instruments.”
If you make a mistake, press the CANCEL key (C1) before pressing the ENTER key (C5) to exit Edit
mode without making any changes.
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