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"
The song's signature opening was born from a happy accident. Keyboardist Richard Wright played a single high note on a grand piano that was accidentally fed back through a . This created the famous "underwater" sonar sound that defines the track's intro. 3. Collaborative Writing Echoes - Pink Floyd
: Roger Waters stated the lyrics were an attempt to describe the human potential for empathy . Live at Pompeii The band recorded two dozen separate musical ideas,
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. This created the famous "underwater" sonar sound that
: The eerie, screaming sounds in the middle section were created by David Gilmour reversing a wah-wah pedal.
: Around the 7-minute mark, the song transitions into a repetitive, bass-driven "funk" groove.
"Echoes" was essentially a giant musical puzzle that Pink Floyd pieced together from 24 separate fragments. When they started recording in January 1971, they had no finished songs, so they spent studio time experimenting with random musical ideas. Here is how they "put together" the masterpiece: 1. The "Nothing" Fragments