In the tradition of releasing (or at least announcing)buggy, mostly untested software, here's: js_wrap - a simple wrapper for non Jack-Session aware apps whose state can be fully specified by their commandline Use js_wrap -- gnome-terminal if you want to get a gnome terminal in your jack_session.. Or js_wrap -- a2jmidid if you want to have the alsa to midi bridge in your jack_session.. Get the software via copy and paste of the following commands: git clone https://github.com/fps/js_wrap cd js_wrap mkdir bld cd bld cmake .. cd .. make -C bld sudo make install and get to fixing bugs ;D In my experiments it worked just fine with gnome-terminal though there are some errors and the code is pretty much copy-pasta'd from lash_wrap... So expect breakage and panic and hilarity which will ensue.. Always use condoms, Flo