from 0 to 9 if only musical keyboard is used.
If you also have dedicated LCD module -
MiDisp, all setting activity is clearly visible.
It's much easier then to follow what stage of programming you are in, and short
prompts are displayed according to your selection.
5.1
Transposition (starting note)
Transposition of any keyboard connected to MBBS is unlimited, that means any key
can generate any note from full MIDI range of more than 10 octaves. Each
keyboard, or actually each split in every keyboard scanner, can be individually set.
Change is always performed for the last controller that was used prior entering
transposition edit mode. There are three ways of single keyboard transpose, and
one for global transposition. If MiDisp module is available, transposition is displayed
after each change.
5.1.1
Middle "C" select - #1
This one is usable when you want to quickly align your keyboard with actual MIDI
notes. First you select the keyboard to edit by playing any note in it. Enter „#”
followed by „1" on the keypad (or EDIT pin, and lowest contact in any keyboard
scanner). Now, whatever key you press, it will be the new position of the middle C
MIDI note afterwards - MIDI note number 36. You can select new position of
middle C note anywhere between 3rd and top key of the keyboard.
5.1.2
Tra/- buttons
Second option is to use transposition buttons. There can be 4 of them, two for
semitone steps up/down, and two for octave steps up/down. Such buttons can be
assigned as special events for potentiometer inputs. The event numbers for this
feature are:
- one semitone up: 150
- one semitone down: 151
- one octave up: 152
- one octave down: 153
Pressing such button (shorting input to ground) will affect the last played keyboard,
and this setting will be memorized in non volatile memory. Here you don't have to
enter entire command every time, instead, setting is accessible with single button
stroke. Go to chapter 5.2. for details on how to assign events to inputs.
5.1.3
Tra/- command - #10, #11
Third option uses lowest 2 keys of the keyboard, or numbers "0" and "1" of the
keypad. It doesn't matter if keyboard starts with key C or F or whatever, those are
always two lowest keys. The lowest one shifts the keyboard one semitone down
with each sequence (#10), the 2nd key shifts the keyboard one semitone up (#11).
This is useful if you want to slightly change the transposition once, and there's no
need for easy acce/- buttons.
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