I have just pushed some significant changes to master. If you normally use the latest in master, please pull, build, and test. If you don't normally work with the latest, now might be a good time to try it. See the following wiki page for more:


If you are a plugin user, we need LADSPA effect plugins and DSSI synth plugins regression tested. Changes have been made in these areas and we want to be sure nothing has broken for you for the 24.06 release.

For all users, all normal use cases involving MIDI and audio need regression testing. Use rg like you normally would.

  And now the real announcement...

This update includes Philip's work over the past year on support for LV2 plugins. See Feature Request 462. It is currently considered "experimental" and needs testing as well, but please be sure to test the non-LV2 cases mentioned above first.

You'll need to install two packages on your system in order to build with LV2 support: liblilv and libgtk2.0. For Debian-based, something like this should work:

  apt install liblilv-dev
  apt install libgtk2.0-dev

  Now re-run cmake and it should find those:

  -- The following features have been enabled:
   * LILV, The Lilv library, for lv2 plugins

  -- Found GTK2_GTK: /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so

To turn on LV2 support within rg, go to Edit > Preferences... > LV2 Plugin Support (experimental). Make sure that is checked and restart rg. LV2 plugins will now appear in the various plugin dialogs.

We will be keeping feature request 462 open for the initial round of comments. Please post any findings there:


  Once again, LV2 support is *experimental*, so be prepared for crashes.


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