Avid KeyStudio User Guide20
Bank LSB and Bank Change
Program Change is the most common message for choosing instrument presets. However, the num-
ber 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.
Assigning the Octave Shift buttons to the Bank LSB or Bank MSB Change function lets you step
through and choose banks of preset using either the Octave “>” or Octave “<” buttons.
In either Bank LSB or Bank MSB mode, pressing the Octave “>” button lets you step upward through
the bank numbers, while pressing the Octave “<” button steps downward.
Simultaneously pressing the “<“ and “>” buttons selects the default Bank number (0).
Once the Bank LSB or Bank MSB message has been sent, you must use the Program change function
to select a sound preset from the bank.
To assign the Octave buttons to the Bank LSB or Bank MSB function:
1 Press the Edit Mode button.
2 Choose either Bank LSB function by pressing the “DATA = BANK LSB” key (G#4), or Bank MSB by
pressing the “DATA = BANK MSB” key (A#4).
Re-assigning the Modulation Wheel and Volume Slider
These Controls can be assigned to various instrument functions by “linking” them to a new MIDI
continuous controller number (MIDI CC). For example, the Volume Slider can be assigned to control
the Modulation parameter of a software instrument, or the Modulation Wheel can be assigned to con-
trol the Reverb Depth (amount) parameter.
To assist you with this process, a full listing of Standard MIDI CC numbers can be found in
Appendix B, “Standard MIDI Controller Numbers.”
Refer to Chapter 7, “MIDI Messages In-Depth” for more information about Bank LSB and Bank MSB
messages.
Certain third party software instruments or plug-ins (such as reverbs or EQ's) may not be able to re-
ceive certain MIDI CC's. Refer to the documentation provided with these applications for in formation
about their capabilities.
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