Here is the way I did it using key and keyup
However filtering key numbers may vary with different keyboard layouts
computer-keys-to-notes.zip

@weuoimi apparently the [adsr] has been altered for the tutorial, there are direct connections instead of send and receives
see below
I recreated pm-osc from the tutorial and used this adsr and your dx7 works

seb-harmonik.ar oops, yes your right of course

you need to have the note-off value 0 to turn off the note, >0 is filtering it out
I do it this way.

and rather than -1 the poly index, set the clone index to start at 1 with the -s flag

By changing the 1 to 100 the jpeg looks as good as the tiff if not better and is much smaller in size

The preset file is in C:\Program Files\Purr Data\bin\css folder (on windows 10)

I was able to drag solarized_inverted.css onto the desktop and edit ,box_text to #ff6600 save and drag back to the css folder for the following result.

I personally wouldn't recommend this approach as I would imagine when updating Purr Data the .css file will be overwritten and possibly updated with new fields

I tried to make the purrdata folder read/writeable but it just kept reverting back to read-only

I think you may need to use a message box to this, I dont believe you can put a comma in a list box
use messages with add2 and addcomma commands

Hi
I thought I would have a go
maybe this might help
Cheers
Balwyn
random-read.zip

To change the contents of a message box, use the 'set' message