BBC Radio Scotland is spending a day not broadcasting any music whatsoever.
The move is to mark No Music Day - the brainchild of musician, writer, artist and deviser of bizarre stunts, Bill Drummond.
The former KLF frontman is challenging people to consider how people view and use music in their lives.
Instead of music, Radio Scotland programmes will include discussions, interviews and a chance to contemplate a world without music.
Drummond came up with the idea in 2005 and this year will be the third time he has marked the day.
He chose Wednesday, 21 November because it is the day before St Cecilia's Day, who is the patron saint of music.
"There seemed a logic that we fast from music on the day before we may traditionally have celebrated and given thanks for music," Drummond said.
He added: "I decided to have one day without listening to music to give myself some space."
Drummond is to appear on various Radio Scotland programmes during the day to talk about music and avoiding it for 24 hours.
The usual Good Morning Scotland music at 0600 GMT will be replaced with other noises.
At 0930 GMT Fred MacAulay and Co will send out the No Music Day Police in a bid to stop the public listening to music on their MP3 players.
The Radio Cafe will feature an in-depth interview with Drummond looking at his career in the music industry and his acclaim as a conceptual artist.
'Live music'
Later, he will take calls on Tom Morton's Show about the piece of music that had the biggest impact on listener's lives.
Iain Anderson will break the No Music Day fast at midnight.
Jeff Zycinski, head of radio, said: "Radio Scotland broadcasts more live music than all the Scottish commercial stations put together.
"Bill's idea was to show how important music was to people by taking it away. The day will also prompt the question - 'What kind of music do we want?'"
Drummond, from Stranraer, is no stranger to attention-grabbing stunts.
In 1994, he burned £1m of his band's earnings on the island of Jura.
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No Music Day - November 21st
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In 1994, he burned £1m of his band's earnings on the island of Jura.
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