5.3
MIDI Channel - #3
Channel of each potentiometer and keyboard or split can be set individually. To
change MIDI channel of certain potentiometer select the pot by simply turning it a
bit. Likewise, to select a contact scanner, play any note or flip any switch, whatever
is connected. Then you can select MIDI channel with the following sequence: "# 3
<channel number>". The channel number must be in range 1-16. Channels from 2
to 9 require only 1 key stroke, while channel 1 needs to be entered as 2 digits –
namely "01". Channel 10 and above of course need 2 keystrokes too. Then turn
another potentiometer or strike a key in other keyboard and select its channel the
same way.
Channel can be also set by +/- buttons if you assign any 2 potentiometer, or special
switch inputs in the system to proper events. They become then 2 inputs for
buttons, that change channel in steps one up or down for last used device in the
system, like keyboard or potentiometer. Go to chapter 5.2.25 for details.
There's also temporary channel shift control for all devices (keyboards and pots)
available if you assign event 136 for example to a small contact scanner like BBS24.
This way you can have direct inputs for selecting MIDI channel with single key
stroke. Go to chapter 5.2.10 for details.
5.4
Program Change - #4
MBBS allows to send Program Change MIDI messages in range 1-128. Several ways
are available, here's summary of them:
- series of Program Change buttons in continuous numbering range using event
129 described in chapter 5.2.3
- same as above but with each input programmable to a specific number, using
event 134 described in 5.2.8
- rotary switches for Bank and Program select described in chapters 5.2.18-19
It is also possible to select numbers greater than 128 with help of Bank Select MSB
message. This is exactly how patch select works in mode described here. To select
any patch number from range 1-999, you can use #4 command followed by the
patch number. To change the patch on selected keyboard directly to specific
number, play a note on this keyboard and enter the sequence: "# 4 <program
number>". The Bank Select and Program Change MIDI messages are sent directly
after 3rd digit of entered patch number. You must type 3 digits every time, even for
single digit program, like 001.
5.5
Keyboard split - #5
It is possible to split each keyboard into 2 independent parts. The split point can be
anywhere on the keyboard, and both parts can work with independently adjusted
MIDI channel, type of event and starting note (transposition) or range of other
controllers if something else than notes is assigned to a keyboard. Assuming that
all inputs of MBBS are equipped with DMS-2K dual keyboard scanner, it is possible
to make a system with 10 splits. To set up the split point, you have to select the
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