The Guitarix developers have just announced the release of Guitarix version 0.32.0. For the uninitiated, Guitarix is a tube amplifier simulation for JACK, with an additional mono and a stereo effect rack. Guitarix includes a large list of plugins and also supports LADSPA/LV2 plugins.
This release fixes some bugs. It adds new tuning scales (19- and 31-TET) to guitarix and Gxtuner.lv2 and also includes a new LV2 plugin, GxMultiBandReverb.