A Los Osos musician, Warren Groff, has created and patented a 32 note concave-radiating midi controller pedalboard with the following features:
1) Transpose - It may be transposed down by as much as two octaves or up by as much as a fifth in half-step intervals. When transposed down two octaves it is capable of playing notes from C-1 through G3. When transposed up a fifth it is capable of playing notes from G1 to D6.
2) Bank Switches - It incorporates 16', 8' and 4' bank switches that enable it to play as many as three notes an octave apart simultaneously (much like inter-manual coup0lers on a pipe organ that couple ranks of pipes of a manual to the pedals).
3) Pitch Bend - The full-time pitch bend swell shoe pedal has a spring loaded center return position.
4) Control Swell Shoe - The assignable control swell shoe pedal can control after touch, pitch bend, modulation, volume or left to right audio panning.
5) Volume Swell Shoe - There is a full-time Volume swell shoe pedal with a minimum volume setting adjustment knob. This volume pedal may be used in conjunction with the midi output of the pedalboard or plugged into another keyboard or tone module to control it separately.
6) Optional Pedal Section - It has a section covered with hook and loop material to accept a sustain pedal or another volume pedal. If this section was used for a volume swell shoe and the control swell shoe was assigned to control volume, the pedalboard could independently control the audio levels of three devices.
7) Velocity / Non-Velocity Sensitive - It may be either velocity sensitive or not velocity sensitive (see #10).
8) Program change - A program switch allows the user to change the program / patch number ( 1 - 128) and bank number of the midi device being controlled.
9) Midi Channel Change - A channel switch allows the user to change the midi channel number ( 1 - 16) of the pedalboard output.
10) Two Midi Outputs - There are two midi output jacks on the rear panel. One is a full-time output for the default velocity curve of the pedalboard. The other may be switched from the full-time default velocity curve to a user-programmable velocity curve via the use of a velocity converter. The velocity converter may be programed for a different velocity curve for each of the 16 midi channels, including a selectable fixed velocity number (0 through 127) for a non-velocity sensitive output. by using the two output jacks, the pedalboard may be simultaneously velocity sensitive for one or more midi devices and non-velocity sensitive for others.
The pedalboard is uilt with the attributes of pipe organs, is feature packed, and yet is performance friendly.