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v1.0.0
TrackWerk 0.9 beta — Independent identity, Studio & Archive workflow
TrackWerk 0.9 beta is the newly named, independently designed Kid Bunka handheld music studio, based on PocketTracker by conanizer and contributors.
This replaces the previous Pocket Tracker Extreme beta for new testing. The distinct TrackWerk identity, updated interface and several essential fixes are now together in one release. Earlier release history stays available for reference.
Start here
- Illustrated English website and tutorial
- Watch the new sample-to-beat session
- Read INSTALL-AND-UPDATE.md before copying an update. Linux program updates retain existing samples, projects, presets, themes and controller settings. The public Android app uses its own identity: keep an earlier app installed and export app-private work to a shared media folder before migrating. Private preferences and controller settings do not transfer automatically.
Choose your package
| Download | Use |
|---|---|
| TrackWerk-0.9-Android.apk | Android 8+, ARM64 / ARMv7 / x86_64, independent TrackWerk app identity |
| TrackWerk-0.9-Brick-KNULLI.zip | First app installation on a working Trimui Brick KNULLI card |
| TrackWerk-0.9-Brick-Program-Factory-Update.zip | Program/factory update for the established Brick launcher |
| TrackWerk-0.9-Miyoo-Mini-Onion.zip | Original Miyoo Mini, local/offline audio |
| TrackWerk-0.9-Miyoo-Plus-Onion.zip | Miyoo Mini Plus, separate online profile for Wi-Fi sources |
| TrackWerk-0.9-Factory-Presets.zip | 2,048 instrument presets plus categorized effect/mastering collections |
| TrackWerk-0.9-Source.zip | Exact corresponding source, editable font/art sources and build tools |
| SDL2-mmiyoo-f6319cf9-source.tar.gz | Exact accompanying Miyoo SDL source |
SHA256SUMS.txt provides integrity hashes. KNULLI and Onion themselves are supplied by their official projects. The repository name and internal data paths are retained so existing links and updates continue to work.
What is included
Eight-track sequencing; engine-specific synth controls and categorized presets; 64 momentary Punch choices in eight banks; detailed sample editing and slicing; long-WAV storage preview and crop-to-editor; Drumlab; project swing; internal resampling; effects and mastering presets; supported Internet Archive source sampling; a supported M8 sampler/arrangement import subset; 17 typefaces, 50 palettes and 18 materials.
The update includes the Mini Plus HTTPS runtime fix, improved long-sample handling, independent TrackWerk artwork and typography, and DSP initialization fixes. Production source and final platform artifacts were checked together; private libraries, signing keys, device identifiers and private project/sample collections are excluded.
Beta boundaries
Physical acceptance is still being collected. Android controllers and microphone/class-compliant interface input depend on the actual device. Miyoo profiles do not expose physical audio input. The original Mini has no built-in Wi-Fi. Direct iPhone-to-Brick USB sampling failed in the tested setup and is not a supported claim. R36S and Polyend Tracker Mini are not new 0.9 targets. Unsupported M8 engines/effects are reported and omitted rather than presented as a complete M8 emulation.
Credits and support
GPL-3.0-or-later; original authors, selected Mutable Instruments DSP by Emilie Gillet and third-party notices retain their credits. See the source notices and website credits. TrackWerk is independent of the hardware makers and upstream projects.
The session film contains an adapted excerpt of “Modern Jazz Samba” by Kevin MacLeod (incompetech.com), CC BY 4.0. Source. Its intact eight-bar phrase was tempo-prepared from 85 to 86 BPM outside the app, filtered and combined with new hip-hop and drum-and-bass arrangements by Kid Bunka. The original bass and harmony remain. App screens are genuine native captures inside an illustrated Brick frame; the workflow is condensed. Raw private drums are not in the public software downloads.
All features are free. Optional support for Kid Bunka.
TrackWerk — historical beta.2 (superseded)
Superseded by TrackWerk 0.9 beta. This earlier Pocket Tracker Extreme release is kept for historical reference. Use the current TrackWerk release and the updated installation and migration guide. TrackWerk has its own name and public Android identity. Keep an earlier Android app installed and follow the migration steps to retain its projects and samples.
Pocket Tracker Extreme by Kid Bunka — free, GPL-3.0-or-later public beta for Android and TrimUI Brick/KNULLI, with a separate experimental R36S Linux package.
New in beta.2
- 64 momentary Punch-in effects in eight banks of eight. Open with L+SELECT, change banks with L/R, hold A to perform and release A to restore.
- 32 color palettes and 12 materials, retaining existing theme identifiers and saved choices.
- Visible RECORD entry from Instrument and Sample Editor, input selection, explicit start/stop, and distinct waiting/receiving-audio states. Keep a take and open it for editing and slicing. These controls do not imply every USB device works.
- A program-only Brick update with verified backup and rollback; samples, projects, presets, launcher, controller configuration and settings are left in place.
- Braids undefined signed-shift fixes with unchanged reference PCM hashes.
The synthesis studio, categorized factory presets, detailed sample editor, Drumlab, mastering, online digging and supported M8 sampler/arrangement import remain included.
Choose your download
- Android: Android.apk (Android 8/API 26+, ARM64, ARMv7 and x86-64). Install over the public beta.1 to update the same app. Earlier private .debug builds have a different identity; their owner-specific compatible update is supplied separately, not in these public assets. Do not uninstall or reset to update.
- Existing working Brick: Brick-Program-Update.zip and UPDATE-EXISTING-INSTALL.txt. Shut down before removing the SD card. Use the included computer updater on the existing app folder. No reflash or whole-folder replacement is needed.
- New Brick installation: Brick.zip and HOW-TO-FIRST-START.txt. KNULLI itself is linked from its official release, not bundled.
- R36S-Community-Test.zip is a separate Linux experiment, not an Android APK or a hardware-certified build.
- Factory-Presets.zip contains 2,048 instrument recipes. Demo-Project.zip is the rights-clean editable Mint Afterhours project (CC BY 4.0).
Validation and known limits
The exact final native executable passed 27 test groups in Cortex-A53 and Cortex-A35 Linux emulation; launcher tests passed 23 Brick and 26 R36S fixtures. Android signature/ABI/alignment checks and ARM64-emulator runtime tests passed. The legacy private Android upgrade preserved the seeded files, preferences, theme and controller choices; a nonempty persisted folder grant was not exercised. The program updater passed preservation/rollback fixtures and an actual old-to-new executable round trip in temporary folders. See Release-QA.json for evidence and limits.
A preceding private build was user-tested on the actual Brick. Physical acceptance of this beta.2 and broad Android/R36S handheld compatibility remain pending. Direct iPhone-to-Brick USB-C capture FAILED in the user’s repeated hardware test/current setup; both ports charged only. The iPhone model/cable are unspecified. Beta.2 makes recording and diagnostics easier to find, but does not claim to fix this route. Class-compliant interface recording needs a separate hardware test.
Online sources can change; use only audio you are authorized to sample. M8 import covers a supported subset, not every M8 synthesizer/effect. No latency, battery-life or maximum-polyphony claims are made from emulation.
Source.zip is the matching application and companion-source snapshot with build instructions, original credits and third-party notices. SHA256SUMS.txt verifies the public artifacts. Signing keys, personal samples and private pairing data are excluded. The revised feature film is being prepared separately and is not part of this release.
TrackWerk — historical beta.1 (superseded)
Superseded by TrackWerk 0.9 beta. This earlier Pocket Tracker Extreme release is kept for historical reference. Use the current TrackWerk release and the updated installation and migration guide. TrackWerk has its own name and public Android identity. Keep an earlier Android app installed and follow the migration steps to retain its projects and samples.
A free, open-source handheld music studio by Kid Bunka, based on PocketTracker by conanizer and contributors.
Live sound design with Mutable Instruments DSP models, categorized presets, punch-in effects, a detailed sample editor, Drumlab/groove generation, mastering, online digging and the supported M8 sampler/arrangement import subset.
Choose your package
- Android.apk: Android 8/API 26+, ARM64, legacy ARMv7 and x86-64. Installation and release runtime checked on an ARM64 emulator; individual handhelds and USB interfaces still need device validation.
- Brick.zip: native TrimUI Brick / KNULLI package, standalone launcher. Start with HOW-TO-FIRST-START.txt. KNULLI itself is supplied through its official project, not bundled here.
- R36S-Community-Test.zip: a separate experimental native Linux package. R36S is not Android; physical controls/audio validation is pending.
- Factory-Presets.zip: 2,048 categorized instrument parameter presets. Extract its Presets folder into your media folder.
- Demo-Project.zip: the editable original Mint Afterhours song and samples, CC BY 4.0.
- Source.zip: matching application/helper sources, licenses and build instructions. SHA256SUMS.txt provides integrity checks.
Illustrated English guide · Project website
Known beta limits
Brick musical workflows have been user-tested with no errors reported so far; the full acceptance workbook remains in progress. The current public candidate has software/VM checks rather than a completed physical-device matrix. Direct iPhone-to-Brick USB capture failed in the user's repeated hardware test with the current setup. Both ports were reported to charge only; the iPhone model/cable were unspecified. The experimental helper remains included, but this route is not working in that tested setup. Class-compliant audio-interface recording is a separate, pending hardware test. Online sources can change; use material you have permission to obtain and sample. M8 import does not emulate every M8 synth/effect.
GPL-3.0-or-later; original and third-party credits are included. All features are free. Optional support is available through the project website.