Yes. It’s as follows.

In the script file, you will notice at line 34:

tell application “iTunes”
if player state is playing then

This tell us if iTunes is playing. We can add more functions for pause and stopped using another set of conditionals:

else if player state is paused then
#code here
end if
else if player state is stopped then
#code here
end if

It should be easy to fill in your own code at this point. Hope this helps!