- On Linux systems, <dfn>QJackCtl</dfn> control software displays ALSA MIDI
- ports under its "ALSA" tab (it does not currently display CoreMIDI ports).
- By contrast, JACK MIDI ports show up under the <kbd class="menu">MIDI</kbd>
- tab in QJackCtl. However, when Ardour is using jackd for audio in and out
- the alsa MIDI ports are not accessable. When Ardour is using ALSA for audio
- in and out then only alsa MIDI ports are accessable.
+ <dfn><abbr title="JACK Audio Connection Kit">JACK</abbr></dfn> is an
+ alternate audio system which Ardour can utilize for both audio and
+ MIDI. JACK is used to route audio between independent applications,
+ and is now considered an advanced use case which is not recommended
+ for most users. Users with a need to use JACK for audio routing
+ should consult the latest documentation at
+ the <a href="https://jackaudio.org/">JACK website</a>.