Teenage Engineering OP-XY firmware

- fix: occasional sequencer stalls when browsing presets and samples - fix: tape track audio residue remaining after switching projects - fix: CPU overload indicator not showing all CPU stalls - fix: unit sometimes not starting when connected to USB - fix: step components being cleared when holding step and changing note - fix: auxiliary track LFO not affecting UI parameters - fix: settings not always properly set after copying and pasting tracks - fix: MIDI engine parameter affected by arpeggio

- new quantization grid for odd track scales (x3, x5, x6, x7) - improve how multisamples work together with global transpose - use normal note off with release when stopping hold player - avoid delay effect reacting to jittery external tempo - inherit current player type when adding a new pattern - improve user experience when preset folders use same name as factory presets - rework the voice stealing indicator, now shows all audible voice-stealing events - fix: incorrect quantizing of notes close to the end of the pattern - fix: overlapping notes causing unexpected arpeggio behaviour - fix: user tunings were inconsistently loaded to the user slots - fix: couldn't add same note with two octaves apart to step when holding note and pressing step - fix: audio-only USB interface would show as disconnected - fix: incorrect parameter names on epiano screen - fix: muted arpeggio tracks played old notes when hold was turned off - fix: could still input maestro notes when bar screen was shown on top - fix: duplicating a project did not include unsaved changes - fix: sometimes no notes sent on TRS MIDI when clocked via incoming TRS MIDI

- faster loading of user content - rotate components and parameter locks along with triggers - stop held arpeggio notes upon pattern switch - simplified global transpose - fix: semi-unresponsive state after startup - fix: preset not loading after being pasted - fix: switching to an unassigned key would exit subfolder - fix: unable to play notes on disabled maestro screen

- add option to save to same snapshot instead of new (hold shift) - add "make default" option to templates - add system setting for sample preview - don't apply sustain pedal to arpeggio notes - fix: arpeggio not affected by brain - fix: arpeggio not active until playback start or entered screen - fix: linked tracks parameters lags behind on pattern change - fix: brain send settings do not honor sound link - fix: pasting a step to first start would not work with negative micro timing - fix: wrong buttons could show up in sample browser - fix: sample doesn't show up in sample browser after recording - fix: when renaming in sample browser, delete key deletes sample instead of letter - fix: sub folder indicator "/" disappearing when scrolling

- user content: support for deeper folder structures - user content: optimized handling of large data - preset browser: allow adding preset folder - preset browser: allow moving presets between folders - sample browser: group all samples used by user presets - sample browser: preview sounds automatically - system usage indicators to show voice count, cpu and sample memory - improved cpu voice limiting to reduce pops and crackles - increased number of patterns per track from 9 to 16 - project templates support - shift sequence functionality - added midi monitor to system menu - new sustain pedal functionality (holds notes until pedal up) - more intuitive logic for linked track octave offset - com: improved device list and device popup - mtp: improved robustness & optimizations - mtp: utf8 support - fix: midi engine bugs - fix: slowest manual speed in 'value' lfo resulted in 0 speed - fix: linked arpeggio not triggering the first time - fix: broken combination of hold and random spark components - fix: param lock not shown on tape screen - fix: midi program change param locks not working - fix: BLE advertise sometimes not working - fix: stuck maestro notes when switching to scenes/patterns - fix: param lock preview with nudged step not working - fix: page duplicate missing first note - fix: scrambling a MIDI track only produces low values for first CC - fix: highlighting current project in project browser didn't work after reboot - fix: arpeggios would always reset at the end of a pattern - fix: mute popup shown for midi tracks that aren't active - fix: hanging notes when enabling arpeggio/hold - fix: hanging notes when MasterEcho and Maestro is combined - fix: hanging notes with linked tracks - ui: reset eq with encoder click - ui: draw drum sampler fade over waveform - ui: draw pattern stacks differently depending on how many patterns there are - ui: encoder click to toggle browser sorting mode - ui: toggle track quantize with encoder click