+ MIDI + is a way to describe music data and to control music hardware and + software. Ardour can import and record MIDI data, and perform a + variety of editing operations on it. Furthermore, MIDI can be used to + control various functions of Ardour. +
+ ++ MIDI input and output for Ardour are handled by the same "engine" + that handles audio input and output. Up to release 3.5, that means + that all MIDI I/O takes place via JACK. JACK itself uses the + native MIDI support of the operating system to receive and send + MIDI data. These are: +
+ ++ CoreMIDI is the standard MIDI framework on OSX systems. + It provides drivers for MIDI hardware and libraries needed by MIDI + software clients. +
+ ++ ALSA MIDI + is the standard MIDI framework on Linux systems. It provides drivers + for MIDI hardware and libraries needed by MIDI software clients. +
+ ++ NoteThe QJackCtl 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 MIDI tab in QJackCtl. +
+ ++By default, JACK will not automatically detect and use existing MIDI +ports on your system. You must choose one of several ways +of bridging between the native MIDI frameworks +(e.g. CoreMIDI or ALSA) and JACK MIDI, as described in the sections +below. +
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