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Qtractor 0.7.3 - A Tackier Gluon is out!

Hello there and again,

This time getting ready for the NYE. Prepare to party, the countdown has begun... but first, let there be just one cheesier announcement ;o)

Qtractor 0.7.3 (a tackier gluon) is released!

Everyone is strongly invited to upgrade. No excuses.

Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK) for audio and the Advanced Linux Sound Architecture (ALSA) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.

Change-log (since last cheesy release):

  • Slight increase on the number of decimal digits for the plugin parameters while on the generic plugin properties dialog. Also applied to automation curve node value editing.
  • Unlimited slack is now in effect on editing over and beyond the current session or clip contents length, on both the main tracks and MIDI clip editor (piano-roll) views.
  • Ctrl+click and dragging the left or right edges of a clip will now make it spill over and replicate as many clip clones as it fits in the left or right horizontal extent.
  • Added View/Note Type and Value Type command menus to the MIDI clip editor (aka. piano-roll) which opens the possibility for discrete shortcuts to switching views eg. Note Velocity and Controller views (after a kind request by yubatake, thanks).
  • Fixed the conversion and/or override of MIDI clip offsets when moving and copy/pasting across tempo/time-signature changes.
  • Fixed MIDI file track/channel duration estimator, which was giving quite wrong and way too short reads.
  • Fixed a drag-and-drop bug over the main tracks view, when new tracks were being inserted at the top and not to the bottom as is normally indicated by the floating visual placeholder.
  • Fixed LV2UI_Resize handle from extension_data(LV2_UI__resize), now passing LV2UI_Handle in first argument to ui_resize(), as found correct and needed for resizable/scaleable LV2 UI's, most specially to ssj71's so called Infamous Plugins, thanks.

Enjoy && Happy New Year.


Project page:


Wiki (on going, help wanted!):


Qtractor is free, open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

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Enjoy && Happy New Year.

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