Toc H. was
the army signallers' code for "TH", representing
Talbot House, a club where officers and enlisted men were equals, which later became an interdenominational Christian fellowship organization serving the community. According to
Nick Mason, the original four members of Pink Floyd (
Syd Barrett,
Roger Waters,
Richard Wright and Mason) were present at
Abbey Road Studios and watched
the Beatles record "
Lovely Rita" from ''
Sgt. Pepper's Lonely Hearts Club Band''. Voice effects and noises similar to those used in "Lovely Rita" could be heard in "Pow R. Toc H.", recorded in the next studio during the same period. Waters also uses the "scream" he later used in "
Careful with That Axe, Eugene". ==Alternative and live versions==