Whether the bit Roger is overdubbing in Pompeii is on the album is questionable, but he certainly did program the main part (which Gilmour did manipulate during recording).

__________________
what do you teach your children about me?
what do you teach your little children about me?
pimp, thug, bling drug lord of the undergrounded kings
how can you be so sure i won't call down the rain?
what do you teach your little children about me?
you point your gun, wait, hide and run. i see it plain