HoustonTracker 2 is a music editor/sequencer for the Texas Instruments TI-82, TI-83/82STATS, and TI-83+/84+/SE. It allows you to compose and play multi-channel 1-bit music directly on your TI graphic calculator.

HoustonTracker 2 is a complete rewrite of the original Houston Tracker. Like HT, it is developed by utz aka irrlicht project.

• 3 tone channels
• 1 non-interrupting drum channel
• up to 128 note patterns
• up to 64 drum/fx patterns
• sequence length up to 255 pattern rows
• 16-bit frequency precision
• 8-bit speed precision, can be configured per step
• various effects, including:
  - L/C/R stereo hard-panning for tone and drum channels
  - 8bit duty cycle control
  - duty cycle sweep
• 2 user definable samples
• up to 8 savestates
• edit during playback

 Sound example

Old release: version 2.20 (includes 82/83/8x binaries, savestate manager, and docs)
Old release: version 2.10 (includes 82/83/8x binaries and docs)
Old release: version 2.00 (includes 82/83/8x binaries and docs)

I could also do with some more TIs for testing. If you have a TI-73, TI-76.fr, TI-82STATS, TI82+, TI-83+ SE, TI-84+, or TI-84+ SE, and would be willing to donate it to the good cause, please get in touch at the address below.

Want to book me for a HoustonTracker workshop? Write a mail to utz at this domain!

Write to utz at this domain or open a ticket on the github issue tracker.

2018-03-23
Version 2.30 -	NEW/CHANGES - note table tuned to ~440 Hz (and some notes produce more useful noise fx as a result) - ch2 duty sweep (5xx, xx > 0x80) now has a configurable parameter (xx & 0x7f) - effect 7xx (auto-chord) now has two modes: unsynced (regular) and synced (octave chord) - channel volumes rebalanced - slowed down ch3 slides, 3xx now works like 2xx (xx is no longer inverse) - 9xx no longer disables 3xx - new effect: ch3 grind (enabled with 6xx, xx>0x80) - old Axx has been ditched - new Axx effect: set phase offset ch3 - Synth Mode: hold current row - add display of last used savestate - add pattern loop playback mode BUGFIXES - fixed user drum input glitch - fixed major bug in keyhandler - reset player when clearing worktune
2016-09-02
Version 2.20 -	NEW/CHANGES - new effect: 7xx - auto chord ch2 - Exx is now the "Extended" fx command - execute up to 5 fx commands at once (old E00..E03 is now E80..E83) - Bxy now has added "loop section" function - more fine-grained tempo control - Copy/Paste keys are arranged in a more consistent/safe manner (check the manual for details!) - (somewhat) reduced noise during row transitions - improved fx handling - ht2util savestate manager now included BUGFIXES - fixed wrong Drum panning (was inverted) - faulty executable checksum calculation fixed (was causing errors with TI-Connect)
2016-02-18
Version 2.10 -	NEW/CHANGES - channel 1 now has variable duty cycle, too - new effect: 4xx - set duty/noise mode ch1 - old 4xx (toggle duty cycle sweep) has been merged in to 5xx (set duty ch2) - old Cxx (set drum mode) is now Dxx - old Dxx (set vol ch1/drums) has been removed (no longer possible for technical reasons) - new effect: 8xx - execute note table ch3 - new effect: 9xx - glitch channel 3 - new Cxx effect: note cut ch1 - TI-82 Parcus/OS 19.006 support - ALPHA mode is now one-shot, ie. it is turned off after an ALPHA mode action has been performed - sound loop now has cycle-exact timing except if drum modes 2x-4x are used - 3xx now uses inverse values (0xff = slowest setting), and is deactivated with 300 instead of 200. The old 300 effect can be achieved with command 9FF instead. - 2xx/3xx no longer trigger on rest notes. - "glitchy" drum modes no longer output sound on rows without a drum trigger - AutoInc is now off by default BUGFIXES - fixed recovery from failed save attempt - fx pattern 0x3f was previously lost during save, fixed - note pattern 0x7f was inaccessible from sequence screen, fixed - fixed broken loop point setting - improved keypad debouncing on Plus models - mode indicators were incorrect after loading/zapping a tune, fixed
2015-10-06
Version 2.00 -	First public release.