Control a device parameter by device name, not working in CSS3?
I don’t know if this is an actual bug, but I followed to the letter the video (https://www.youtube.com/watch?v=3v6zPfnkP3M) to make sure that I was doing this correctly. I had done this with the previous CSS version 2.8 without issues but I seem to get stuck here.
“SyntaxError
:
invalid syntax. Perhaps you forgot a comma?
Traceback (most recent call last):
File “”, line 1, in
File “C:\ProgramData\Ableton\Live 12 Suite\Resources\MIDI Remote Scripts\css_test_init_.py”, line 2, in
from .css_test import css_test.
File “C:\ProgramData\Ableton\Live 12 Suite\Resources\MIDI Remote Scripts\css_test\css_test.py”, line 374″
I used Google AI studio to see if I could understand the problem and got this reply (not sure if it is helpful):
“The Mistake: The function responsible for building this “address” (c_mod) makes a mistake. Instead of creating the correct path…
Correct path: selected_track + .devices + [2] + .parameters[1]
…it incorrectly puts it together like this: Incorrect path: selected_track + 2 + .parameters[1]
It completely omits the crucial .devices part of the address. When Ableton receives this broken address, it doesn’t understand it.”
the file is a very simple one, I have attached it
In the parameter mapping, you have selected the ‘Use Modifier For Device Selection’ box and set the modifiier there.
That’s the wrong one. Unselect it and select the ‘use modifier’ box below then select the modifier as in this image:

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Thanks John. I had to reinstall windows 11 for some odd reason (not CSS related). As soon as I have reinstalled all my programs I will try it!!