Control Change Messages
Gravitas can be controlled with MIDI control change messages. Below is a table that shows which MIDI control
change channel controls each Gravitas parameter.
Gravitas Parameter
CC#
Description:
Drive
14
Sending a value 0 would be equivalent to the knob
Volume
15
being completely counter clock-wise, sending 127 is
Tone
16
equivalent to fully clock-wise. All numbers in between
Rate
17
correspond to knob positions in between those
extremes.
Depth
18
Sway
19
Ramp
20
Midi Note Divisions
21
Sending value 0 sets divisions for whole notes, 1 for half
notes, 2 for dotted eigth notes, 3 for quarter notes, 4 for
eighth notes, and 5 for sixteenth notes.
Tap Switch
93
You can send any value with this CC#, it will simulate
pressing down the tap switch. In short, it’s a way to set
tap tempo via midi.
Expression
100
Sending a value 0 would be equivalent to an expression
pedal being completely “off”, sending 127 is equivalent
to a fully depressed expression pedal. All numbers in
between correspond to knob positions in between those
extremes. As always, the dip switches on the pedal
select which parameter(s) are being controlled via
expression
Bypass Switch
102
Sending a value of 127 engages the pedal, sending a
value of 0 bypasses the pedal. Furthermore, sending a
value of 127 with the pedal already engaged will reset
any ramping that is happening, if any ramping is
happening.
