MIDI reference
What a Bluetooth MIDI foot pedal can do in StajNano. These are StajNano’s own messages: the foot pedal sends them to your phone, and the app then does the work on the pedal over its own Bluetooth link.
Set up
- Options → BT Pedal → On, then pick your foot pedal (for example an M-VAVE Chocolate or a CME WIDI).
- Options → StajNano Channel (1–16, default 1): StajNano only listens on this MIDI channel.
- Set the foot pedal to send on that channel. Program Change and Control Change are used; notes are ignored.
- Numbers are the values on the wire (0–127). A foot pedal that counts programs from 1 shows 71 for the wire value 70, so set it until the app’s numbers below match.
- A number or value that is not listed is ignored.
The recommended live setup: M-VAVE Chocolate
The setup we recommend most for doing everything live with a single Nano Cortex. Four buttons are enough for a whole live set: a short press picks a slot, and a long press on A and on D is the smart switch:
| Button | Short press | Long press |
|---|---|---|
| A | PC 71: slot 1A | PC 70: previous |
| B | PC 72: slot 1B | – |
| C | PC 73: slot 2A | – |
| D | PC 74: slot 2B | PC 75: next |
A to D pick the four presets of the song; a long press on A or D goes to the previous or next song (in Preset or Bank mode, to the previous or next preset or bank). Played like this, it gets you through a whole live show. The long presses of B and C stay free, for example for tap tempo (PC 76). Set the buttons in the foot controller’s own app, on the channel you chose in StajNano.
Program Change
| PC | Does |
|---|---|
| 70 | Smart switch, previous |
| 71 | Press slot 1A: load the preset on it |
| 72 | Press slot 1B |
| 73 | Press slot 2A |
| 74 | Press slot 2B |
| 75 | Smart switch, next |
| 76 | Tap tempo: one tap, like a tap on the BPM box |
Smart switch
One pair of messages, three jobs: previous and next follow the mode chosen in Options, exactly like a swipe on the control page.
| Mode | Previous (70) | Next (75) |
|---|---|---|
| Preset | previous preset | next preset |
| Bank | previous bank (its four presets go on the footswitches) | next bank |
| Song | previous song (its four presets and, when Options → Song Tempo is On, its tempo) | next song |
After the last one comes the first, and before the first comes the last. The message is dropped while the pedal is not connected, while the last change is still loading, and while the tuner is on.
Slots
PC 71–74 do what a tap on that slot does. In Song mode the slots are the shown song’s. They are not held back while a change is loading (the last press wins), but they are dropped without a connection, while the tuner is on, for 1B and 2B when the pedal is not in its 4-preset mode, and for a slot that holds no preset.
Tap tempo
PC 76 is one tap, exactly like a tap on the BPM box of the control page, and taps from the box and from the foot pedal count together. Press it in time with the music: from the second press on, the tempo follows (60000 divided by the mean gap of the last six presses, held to 40–240). More than two seconds without a press starts over, and about two seconds after the last press the tapping ends by itself, so the pedal does not stay in its tap-tempo mode. It is dropped while the pedal is not connected and while the tuner is on. It works in every mode and on every page, and it does not depend on Song Tempo: that option only stops a song from setting a tempo.
Control Change
The value says what to do: 0 = off, 1 = on, 2 = switch (the other way round from what it is now). Values 3–127 are ignored.
| CC | Block |
|---|---|
| 70 | Gate |
| 71 | FX 1 |
| 72 | FX 2 |
| 73 | FX 3 |
| 74 | FX 4 |
| 75 | FX 5 |
| 80 | Amp (off = bypass, on = the capture slot it had before) |
| 81 | Cab (off = bypass, on = the cab slot it had before) |
FX 1 to FX 5 are the five effect tiles from left to right on the control page. A block does what a tap on its tile does; asking for the state it is already in does nothing, and an empty effect slot is left alone. Control Change works in every mode and on every page.