I have just put up another small external lib on my site:
Jackx is has to objects:
jack-connect which allows you to make/break/toggle/query connection between jack ports
jack-ports which allows you to get the names of jack ports with the aid of regular-expression and a few keywords.
So now you can use metro to toggle your connections f.i.
I also redid my site, and put up a bunch of recent music.
As usual it is still beta quality , YMMV
Gerard