I'd like to push this topic up again because there doesn't seem to be any other way, I tried to use the "assign pattern key to midinote"-approach, meaning that I configured my Spark2 to react to midi-notes to change pattern in ableton.
So what I have set up for an easy test is 2 midi clips with only 1 note each (on the 1st sixteenth note of the 1-bar-pattern).
First of all: Spark changes the pattern, when I change the clips. That good.
But: It only changes the pattern 1 bar TOO LATE. Only when my "trigger clip" in Ableton runs for the second time, the pattern in Spark also changes.
Did I forget something on the configuration side in Ableton? Some kind of negative delay or so