Am 03.04.19 um 03:30 schrieb crocket: I wrote a command line "patchbay" in Python. It's called jack-matchmaker: https://github.com/SpotlightKid/jack-matchmaker You could *almost* do that with jack-matchmaker by defining connection patterns in two files, copy the file with the configuration you want at the moment to the file given to jack-matchmaker with the --pattern-file option ad then send a HUP signal to its process to get it to re-read the file. Alas, jack-matchmaker never disconnect existing connections. But maybe you can take some inspiration from the code. It uses its own Python-JACK interface (based on ctypes, stolen from Cadence). I would probably use python-jack instead today: https://github.com/spatialaudio/jackclient-python/ Chris