On Thu, Mar 10, 2016 at 7:42 AM, Ffanci Silvain <silvain@freeshell.de> wrote:
Nacho Otal, Mar 10 2016:
...
2.- Is there a possibility to route directly midi commands to JACK avoiding ALSA?
Not avoiding ALSA, since ALSA drives the hardware and JACK sits ontop of ahrdware drivers. BUT...

Not strictly true. Applications which use JACK MIDI can exchange MIDI data directly, without ALSA. But yes, if you want to use MIDI hardware, ALSA will always be involved.
 
You can start JACK with the -xseq or -xraw commandline options and it will give you your hardware MIDI ports. Tried and tested.

Or you use a2j_midibridge or a similar tool, and if necessary its reverse, which will bridge JACK MIDI

a2jmidid -e

Note that JACK1 has this functionality built in, and using -X seq will activate it.