Thanks guys.
I was looking to fly into Coventry on my first flight as PPL into ATC controlled airfield! According to my VFR guide, there is a GND frequency, and then it says GMC in use during busy periods as notified by NOTAM, Taxy is under general direction from TWR, GMC is for booking out. Didn't know what it meant, and couldn't find it anywhere in the abbreviations!!
Thanks again.