Routing parameters

Tapping an arrow opens the parameters of that connection: a popover on Mac and iPad, a panel from the bottom on iPhone. The sections are numbered in the order they are applied to every message. Each one has its own switch and a Reset button.

The parameters of the Master Keyboard → Synth Module connection, with the event type filter on and the list of message types. — Hover or tap a number to find its description.

TitleInput → output of the connection.
1 · Event type filterLets through only the message types that are on: Note On/Off, Poly Aftertouch, Control Change, Program Change, Channel Pressure, Pitch Bend, SysEx, Clock/Start/Stop/Continue, Song Position, Active Sensing and the other system messages.
ResetPuts the section back to its initial values.

With Control Change on you can choose All, Only these or All except these and type the list of CCs: numbers from 0 to 127 separated by commas, ranges with a hyphen (e.g. 1, 7, 64-67).

Channels and router

Sections 2 and 3: filter on channel 1 and router from channel 1 to channel 2. — Hover or tap a number to find its description.

2 · Input channelsSixteen switches: only messages on the channels that are on go through. All and None change them all at once.
3 · Channel routerFor each input channel, the channel it goes out on. In this example the keyboard plays on channel 1 and the module receives on channel 2.

Transpose and velocity

Sections 4 and 5: transpose by -12 semitones on channel 2; velocity with scale 110%, soft curve and minimum 20. — Hover or tap a number to find its description.

4 · TransposeA value in semitones (±48) applied to the chosen channels. These are output channels, after the router: here the transpose applies to channel 2.
5 · VelocityNote On only, in this order: Fixed value (when on it replaces everything else), Scale as a percentage, Offset, Curve (linear, soft, hard), Minimum and Maximum. Further down, a graph shows the resulting curve. A note never goes out with velocity 0.

Notes that the transpose would push outside the MIDI range (0–127) are dropped. If you change transpose or router while holding a note, its Note Off still reaches the right note.

Monophonic and Hold

Sections 6–7: monophonic mode with Hold and release with the sustain pedal. — Hover or tap a number to find its description.

MonoOne note at a time per output channel, last-note priority: a new note ends the previous one. Useful for basses and monophonic synths.
Mono + HoldLike Mono, but when you release the key the note keeps sounding until the next note or a release.
Releasing HoldRelease with the sustain pedal: lifting the pedal (CC64) ends the note; the sustain itself is then not forwarded, unless you turn on Forward sustain anyway. Release with a dedicated CC: a controller of your choice, with a value above 0. CC 123, CC 120, a slot change and Panic always end the note.

Changes are applied after a short pause, so dragging a slider does not send a stream of Note Offs. When a parameter changes, the notes playing on that connection get their Note Off.

On iPhone

The panel opens from the bottom: drag it up to see it at full height. Done closes it.