@brunatius
I tested A4 editor with standard midi in/out.
And it’s works fine.
So you can use standard midi port instead of USB.
about “MXJ MidiIN”
I put jar file to Java lib folder and tried to use it.
Max window didn’t report any errors,
so setup is OK ,I think.
But when I send "listports"message to “MXJ com.mosephmax.MidiIN” object,
I didn’t get any ports list in the Max window.
So I couldn’t test this object.
And I found small bug of A4.
A4 doesn’t react to “MSB2 LSB0” which is a external input chorus send parameter.
A4 can send this NRPN,
but doesn’t receive this.
I checked my patch,which seems OK.
So probably this is a A4’s bug.