Found this lovely audio piece (and video) while researching into memory and sound. It’s mentioned in The Memory of Sound: Preserving the Sonic Past By Seán Street.
Mike Ladd (born 1959) is an Australian poet and radio presenter.
[Another of Ladd’s works from the same series was entitled] Seaweed, [and] grew out of a chance ﬁnd of a length of audio-cassette tape on a beach:
“I discovered the tape had songs recorded from the radio and children’s voices on it, and I produced the work by multi-tracking these stretched and backwards sounds and voices. Seaweed began an ongoing interest in the physical decay of audio-tape—perhaps reﬂecting the way sound always decays into silence, and that memory can also fade.”