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Update Instructions:
Unzip and copy the firmwareXX.TFM file (not the ZIP file!) to the root of the SD card using the included USB SD card reader or any other micro SD card reader. 
Update will automatically occur when you boot the device. Please refer to the manual or video for more details.

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Changelog v2.1
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Added rotary encoder acceleration with an ACCL setup option (Off/Med/High) so fast spins jump farther while slow moves stay precise
Added SETUP menu PICK (pickup) option: when ON, faders wait until they meet the preset value before changing the sound and show UP/DOWN cues to guide you
Filter cutoff MIDI CC remapped to 102 (from 32) to avoid Bank Select conflicts and restore remote control
Added Scala file (SCL) support for microtonal tuning

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Changelog v2.0

FEATURES
	
•Added Program Change handling (requires MIDI Engine v2.0 or later - open MIDIEngine2 folder for details)

BUG FIXES

•Fixed an issue where operators 5 and 6 were muted if all operators 1–4 volume faders were set to zero.
•Fixed filter tracking issue where the cutoff frequency was lowered after key release.

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Changelog v1.9 

FEATURES
Added CC control of Ribbon (CC#88)

BUG FIXES
Fixed Software solution to completely mute operators when all volumes are at minimum 
(had issues in 1.8)


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Changelog v1.8 

FEATURES
Software solution to completely mute operators when volume is at minimum

BUG FIXES
Sequencer latch mode did not latch correctly

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Changelog v1.7

BUG FIXES
Resolved an issue where preset volume settings were occasionally ignored, resulting in some presets being silent.

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Changelog v1.6
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NEW FEATURES

Added FUGUE mode to the arpeggiator. In this mode, each voice plays the held keys in different directions and at different octaves, creating an intricate polyphonic melody from just a few held notes.

BUG FIXES
Fixed a bug causing an imbalance in voice volume under certain conditions (the heat setting was not being applied consistently across all voices).

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Changelog v1.5
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NEW FEATURES

Preset volume and tremolo depth is now displayed when adjusted using faders

BUG FIXES

Filter and Modulation Envelope Sustain faders incorrectly displayed values as tempo divisions when sync was active

Filter Envelope Sync was not working

Changing all operator envelopes at once (Menu + Envelope fader) did not display the value ranges correctly (0–15)

USER MANUAL ADJUSTMENTS

Previously stated that the ribbon bends up to 5 semitones in CS80 mode — correct range is actually up to one octave, as shown in this excellent CS80 video.
https://youtu.be/sV3qDUTVsNo?si=_H-MPX7bQqbObkgy&t=1488
Note: TWISTfm behaves accordingly, matching what’s demonstrated in the video

Corrected instruction that mistakenly said to hold the encoder and move an envelope fader; it should say hold Menu and move the envelope fader


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Changelog v1.4
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Bug Fixes:
Removed an unintended debug feature that displayed the voice number on-screen in certain voice modes in FW 1.3

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Changelog v1.3
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NEW FEATURES
Filter HEAT value display: The HEAT parameter now displays its value when adjusted using the menu button + resonance fader.
Legato envelope mode: Added LEGATO mode to the envelope menus, allowing the envelope to trigger only on the first note of a legato phrase (applies to both filter env and mod env).
Modwheel detachment: The modwheel can now be detached from assigned parameters. To clear its effect, enter Mod Learn mode and cancel the assignment using the menu button.
Improved USER waveform recording user interface

FIXES
Fixed an issue causing some operators voices to be routed through the wrong filters
Fixed an issue where the HEAT parameter was non-functional when adjusted from the filter menu.
Multiplier fader correction: Multiplier faders were not correctly implemented, causing missing values—this has now been addressed.
RIBBON_HOLD parameter was conflicting with ARP_TIES
Fixed issue causing corrupt USER LFO waveform playback 


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Changelog v1.2 (Jan 22nd 2025)
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NEW FEATURES

preset MOVE function allows to move the currently loaded preset and its backup to another folder

FIXES

MIDI priority menu could not be exited
TREM menu was displaying the wrong item names

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Changelog v1.1 (Jan 4th 2025)
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NEW FEATURES

MPE Engine improvements:

MPE is now enabled/disabled globally from the MIDI menu instead of the voice menu, allowing all voice modes to be used with MPE controllers.
MPE mode now supports MIDI channels 2–16 (previously only 2–9).
MPE works with the sustain pedal
Please configure your MPE controller for lower zone (MIDI Channel1 is the global channel and 2-16 are member channels)
Further improvements have been made to better respond to SLIDE (CC74) 

New "SET(U)P" Menu:
LED settings have been moved to this menu.
Added the ENCS (Encoder Speed) parameter to adjust encoder speed (Normal or Faster).
Added a global BAL (left/right balance offset) setting to the setup menu

New "OPER" (Operator) Menu:
KSL, KSR, and KVS parameters have been moved to this menu.

Fader Shortcuts Added:
MENU + Algo1 fader changes the voicing mode.
MENU + Algo5 fader changes the MIDI input channel (1–16 or MPE).
MENU + Pressure Attack fader changes the ARP mode.
MENU + Pressure Depth fader changes the ARP range.

Improved voice handling algorithm so stealing doesn't occur during release phase (reduces clicks)

FIXES

ARP Compatibility with MPE:
The ARP now works with MPE, allowing pitch bending of layers not linked to the ARP.

KSL & KSR Issues Resolved:
KSL and KSR now function correctly on all voices.

Round Robin Voice Stealing Disabled:
Voice stealing has been disabled in Round Robin mode to ensure proper functionality.

Sustain Pedal in MPE Mode Fixed:
The sustain pedal now works correctly in MPE mode.

Settings Autosave Adjustment:
Autosave is now suspended until all voices are silent, preventing brief stuttering of the arpeggiator or sequencer 5 seconds after a preset change.

2X4 Voice Mode Restored:
Fixed an issue where the 2X4 voice mode was incorrectly monophonic in firmware version 1.0.

Fixed a bug causing operator2 to be muted after changing algoryhtm 5 to #1 when algo 1 is set to #3 in Round Robin voice mode


