Echoes - Pink Floyd -

The band recorded two dozen separate musical ideas, which they initially titled . These included backwards tape loops, experimental riffs, and vocal experiments. They eventually sifted through these, keeping the most promising parts and arranging them into a coherent 23-minute suite. 2. The Famous "Ping"

To fit the format of their legendary film Live at Pompeii , the band "put together" a different version by splitting the song into two parts. "Part 1" opened the film and "Part 2" closed it, creating a bookend effect for the performance. Echoes - Pink Floyd

: The eerie, screaming sounds in the middle section were created by David Gilmour reversing a wah-wah pedal. The band recorded two dozen separate musical ideas,