Yes it can do all what you are saying as I described earlier.
The thing is just to get the basic functions working.

If you replace this button & function:

Gui, Add, Button, x290 y80 h38 w130 gAction07, Play/Stop


Action07:
winactivate,ahk_class TBandWindow
Send, {SPACE}
Return

it should Play/Stop when you hit button 7