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Qtractor 0.9.18 - A Fall'20 Release

Hi everyone,...

Qtractor 0.9.18 (fall'20) is out!


  • When under NSM, all top-level windows, main, mixer and connections, will always start hidden.
  • Plugin editors (GUIs) that are currently open on a track are now brought up as top-level windows immediately when a track is made current or highlighted (and Track / Auto Monitor is in effect).
  • MIDI clip editor mouse hovering effect extended to whole current note line on main view (piano-roll eye-candy++); also, the white keys on MIDI clip editor's virtual piano keyboard, are now fully highlighted.
  • Plugin search paths (View > Options... > Plugins > Paths) now lists all the default and actual existing paths, instead of a blank list.
  • Undimmed octave divider lines on the piano-roll.
  • Fixed potential crash on changing audio output buses channel count.
  • Note names display (inside note rectangles) are now an option on the MIDI clip editor (aka. piano-roll; menu View > Note Names).


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.


Project page:


Git repos:

Wiki (outdated; help wanted!):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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Good to hear! Congratulations mr Capela, it's closer and closer to being the greatest free/libre sequencer. There's only a couple of rather small things left that can make it almost perfect (for me at least), like showing greyed-out notes of multiple/all midi tracks in the PR's background, and switching between midi tracks from within the piano roll.
Also, take a look at some thoughts on the note name feature that you added per my request -

rncbc's picture

maybe i should say sorry for not getting you updated in the 1st place.
i believe your ideas are quite reasonable but please let's not get it all to a full swing, shall we?
you still have tool-tips, right? and that shows on every zoom level, correct?

hyu. point taken and noted. ntl.
cheers & thanks

All right! I wouldn't call it "getting it to a full swing" though because there isn't much to improve and fix, Qtractor is mostly good as it is anyway..

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