Although Roger Waters was the band's bassist, the iconic fretless bass part on this track was actually played by guitarist David Gilmour .

The story behind Pink Floyd's is one of a desperate, last-ditch effort to find human connection after it has already been lost. The Real-Life Inspiration

If you're in the Kansas City area, you can experience their music live at , a tribute performance on Friday, May 29, 2026 , at the Warehouse On Broadway .

The song opens the second disc, immediately following "Goodbye Cruel World," where Pink has finished building his metaphorical wall of isolation.

Having successfully shut everyone out, Pink suddenly panics. He realizes his "protection" is actually a prison and begins calling out to anyone outside —the lonely, the old, even those "breaking bottles in the hall"—hoping for a response.