Adding the line: INDEPENDENT_PATTERN_MODULATION:ON to the CONFIG.TXT file allows configuration of PATTERN modulation in a way consistent with other MODS. You can select or deselect any of the active PATTERNS as a modulation target.

This feature is partially implemented. You can't yet mod it or use it with LATCH but it works for performance as follows:

Press and turn the encoder to shift the ROOT NOTE of every PATTERN in every PROGRESSION in the whole song. With the ROTARY ENCODER PRESSED, the RGB buttons can be pressed to GLOBALLY TRANSPOSE by discrete semitone amounts:

• BTN 1 -> down 2 semitones
• BTN 2 -> down 1 semitone
• BTN 3 -> up 1 semitone
• BTN 4 -> up 2 semitones
• BTN 5 -> down 4 semitones
• BTN 6 -> down 3 semitones
• BTN 7 -> up 3 semitones
• BTN 8 -> up 4 semitones

There are now 4 i2c options:

1. Disting Ex
2. Just Friends (polysynth)
3. Just Friends (envelope generator) - set to shape rather than sound; the first 4 outs will generate envelopes, corresponding to CV outs 1-4 when they receive a new note trigger.
4. ER-301

For ER-301 initialization, press and hold the encoder, then turn to select the number of voices (1-8). Tetrachords then sends pitch, trig, and velocity info with each note. For each specified n voices, the configuration is as follows:

• SC.TR goes high on port n
• SC.CV receives pitch information on port n
• SC.CV receives velocity information on port n + 8
• SC.TR goes low on port n at the same time a MIDI NOTE OFF would be sent by the Tetrachords

When setting up an 8-voice synth patch:

• Respond to triggers on ports 1-8
• Respond to pitch CV on ports 1-8
• Respond to velocity CV on ports 9-16

When setting up a 5-voice synth patch:

• Respond to triggers on ports 1-5
• Respond to pitch CV on ports 1-5
• Respond to velocity CV on ports 9-13

Adding the line: RESPOND_TO_MIDI_CC:ON causes Tetrachords to respond to MIDI CCs received on the MIDI channels assigned to each track. When set to OFF (or not set), the Tetrachords doesn't respond to incoming MIDI CC messages.