Actually,Barry Gray was the one who produced the electronic
musical sound effects for the 2 Dalek movie features,it was
someone else who really composed the music soundtracks
for those films.
Did you also know that Barry Gray produced the electronic
sound effects for the Silicates from the little-seen monster
movie The Island of Terror.I've seen that movie myself.
I've never seen that movie. I'll keep my eyes open for that.