0.2

New features

• SID player: plays C64 .sid files (one or two SIDs, subtunes) from anywhere on the SD card, e.g. the HVSC collection.
• MIDI: notes and CC from a keyboard, MIDI clock out, sync to an external MIDI clock (DIN and USB).
• ASID output: drives real SID chips (e.g. a USBSID-Pico) over MIDI.
• SIDLink: a Raspberry Pi Pico 2 bridge that connects the Tracker to a USBSID-Pico through a powered USB hub.
• Undo / redo: Shift+Rec undoes, Shift+Sample Recorder redoes, for every song edit.
• Multispeed: x1-x8 per song for faster, smoother arpeggios, vibrato and sweeps.
• Track mixer: a level per track, plus drums and master, with meters; tap to mute, Shift+tap to solo.
• Init patch: every new instrument sounds straight away.
• Envelope editing: ADSR on the instrument's GENERAL page, with an envelope graph.
• Sound designer pages: synth controls on four pages of columns (oscillator / envelope, pulse, filter, vibrato).
• Randomiser: makes a variation of a sound or a completely new random one, to keep or cancel.
• Preset browser: try presets live by turning the jog, then keep or cancel.
• Instrument library on the card: 65 ready instruments, browsable and tried live.
• Saving instruments: save your own instruments to the card's library (GoatTracker .ins).
• Copy / paste instruments.
• Instrument picker: hold Instr on any screen to choose an instrument; the pads play each one.
• Stock-style instrument entry: in the instrument column the pads are instruments 1-48 and write into the step.
• Table tools: insert and delete rows without breaking references, show what uses a row, remove unused rows.
• Mute page: Shift + the buttons below the screen mute tracks on the Pattern screen.
• Confirm dialog: one clear question before anything destructive.
• Pad keyboard: type project, song and instrument names on the pads.
• Title bar info: shows the instrument and track the pads play, and marks unsaved changes.
• Config help: a help line for every Config row.
• One SID on both sides: one-SID songs and tunes play on both stereo sides and on both real chips.
• Display fault counter: the Benchmark page counts lost display frames.
• Manual: a full user manual.
• New example songs: multispeed demos (HYPERARP, SILKSWEEP) and three demoscene tunes (CRACKINTRO, RASTERBARS, ENDSCROLL).

Full Changelog: v0.1...v0.2

v0.1

SIDTracker
Replacement firmware that turns the original Polyend Tracker into a dual-SID music tracker: two emulated Commodore 64 SID chips and six voices.

Highlights

• Two SIDs: 6581 or 8580 per chip, PAL or NTSC, stereo balance.
• Tracker: pattern editor, song order list with transpose and repeat, 16 commands, instruments built from GoatTracker-style tables.
• Sound designer: shape an instrument with synth controls (waveform, ADSR, pulse width, filter cutoff, resonance and sweep, vibrato) and hear every change at once.
• Sound library: 49 ready instruments and an arpeggiator.
• Export: GoatTracker .sng / .ins import and export, and real .sid files that play in any SID player and on a C64.
• Extras: live Perform controls with automation; PCM drums, delay, chorus and reverb.
• Usability: Master mixer with level meters; themes, including Commodore 64; Shift+Power screenshots.
• Included songs: five demo songs, and the 13-song dual-SID soundtrack of Blast Grid 64 by @sandlbn . Each comes as a project and as a .sid file.

Install: back up your SD card, unzip the release onto it, then on the stock firmware go to Config > Firmware update > PolyendTracSIDTRv064.ptf. To return to stock, use Config > F7 FIRMWARE in SIDTracker, or put /Firmware/ot_restore.txt containing PolyendTracker_1.9.2.ptf on the card and power on.

Use at your own risk. This is experimental, unofficial firmware with no warranty. The authors are not responsible for lost data or damaged hardware. SIDTracker is not affiliated with Polyend.