Though no notes are sounded during a lacuna, it is a purposeful musical passage used for a specific effect in the context of the overall work.
Alternative, indie band The Choir incorporated a lacuna in their song "Circle Slide" of the celebrated, eponymous album, as a guitar and sax fade to absolute silence on the record, a feat that drummer Steve Hindalong described as tricky to pull off in a pre-digital environment.
Radiohead's "Motion Picture Soundtrack", the last track on the album Kid A has an extended period of silence (the silence is nearly two minutes long) to augment the theme of the album,[2] but is not precursor to a hidden track.
Similarly, Boards of Canada's Geogaddi features a lacuna in its closing track, "Magic Window."
Some traditional Japanese music incorporates lacunae, the auditory equivalent of negative space, a visual aesthetic element particularly appreciated in Japanese culture.