The Accidental 'Ping': How Pink Floyd's Meddle Sessions Forged Echoes from a Piano Note and Tape Loops

The 23-minute centerpiece of Meddle started with a single piano note run through a spinning Leslie speaker. That accidental “ping” became the anchor for “Echoes,” a track that took the band six months of experimental sessions at AIR Studios and their own portable recording gear. It was the first time the post-Syd Barrett lineup—Gilmour, Waters, Wright, Mason—truly worked as a democratic unit, building the piece from a simple B-minor jam they called “The Son of Nothing” into a sprawling, multi-section suite.

The technical innovations were typical Pink Floyd: tape loops, reversed piano, and a Binson Echorec. But the real leap was structural. The middle section—that eerie, windswept vocal harmonization sound—wasn’t a synth; it was Gilmour’s slide guitar fed through a wah-wah pedal and then reversed, then layered. Wright recorded a grand piano note through the Leslie, then looped it at different speeds. They were less concerned with ‘writing a song’ than with sculpting a sound environment that could hold the weight of two full vinyl