gedit External Tools & Csound

I am a newbie at Linux and so far so good my workflow of studying music with Csound is adding a new tool under the External Tools Gedit plugin doing this, #!/bin/sh csound '/home/ye53b/Desktop/TC4R37A7B/music/csound' which is a text file containing the Csound syntax that later is interpreted as noise... Is there any way to identify the path of the file I am in, instead of using a main text file every time (/home/ye53b/Desktop/TC4R37A7B/music/csound)?