Morse code is over 180 years old, and it stopped being the maritime distress standard in 1999. It still turns up in songs, films and jewellery, because a rhythm of short and long sounds is easy to hide and satisfying to decode.
This list sticks to appearances we could check. Each one below is described in the Wikipedia article about that song or film, and the Morse is written out so you can play it in the translator. Fan theories about "hidden Morse" are common online, but many don't decode to anything, so we've left out what we couldn't confirm.
Music
Rush: "YYZ" (1981)
The instrumental opens with a rhythm that is the Morse for YYZ, -.-- -.-- --... YYZ is the code for Toronto Pearson airport, near the band's hometown, and the airport's VOR navigation beacon sends that identifier in Morse. The band heard it when guitarist Alex Lifeson flew them into the airport. Pilots still check beacon identifiers like this one; see Morse code in aviation.
Kraftwerk: "Radioactivity" (1975)
Morse signals spell out RADIOACTIVITY near the start of the track and again near the end, .-. .- -.. .. --- .- -.-. - .. ...- .. - -.--, and the last Morse signal spells the band's name, KRAFTWERK.
The Clash: "London Calling" (1979)
The song fades out on a Morse signal spelling SOS, ... --- .... The story behind SOS explains where that pattern came from.
Films
Independence Day (1996)
The U.S. military uses Morse code to contact other nations and organise a coordinated attack on the alien ships.
Interstellar (2014)
Cooper sends the data his robot TARS collected to his daughter Murph in Morse, by moving the second hand of her wristwatch. Earlier in the film, Cooper realises that a pattern in the dust of Murph's room is binary code giving a set of coordinates. If you want to compare the two codes, see Morse code vs binary.
The real Titanic
Not a film moment, but the one people most often ask about: on the night of 14–15 April 1912, the Titanic's Marconi operators sent both the older CQD distress call and the newer SOS. CQD is -.-. --.- -..: "CQ", the call to all stations, with a D for distress.
Jewellery and tattoos
Morse is popular on bracelets, necklaces and tattoos because it is compact and private: the wearer knows what it says, and most people who see it don't. Common choices are a name, a date, or a short phrase:
- "ANNA": .- -. -. .-
- "I LOVE YOU": .. / .-.. --- ...- . / -.-- --- ..-
- "BE STILL": -... . / ... - .. .-.. .-..
Mistakes are common, especially missing letter gaps, which change what the code says. Before anything is engraved or inked, read why Morse code jewelry is usually wrong and check the design in the translator. Our ideas posts for bracelets and tattoos have more examples.
Why Morse keeps coming back
- It works in any medium. The same code can be sent as sound, light, taps, vibration or marks on paper.
- It is easy to hide. A rhythm in a song or a row of beads looks like decoration until someone decodes it.
- It can be checked. Anyone with a chart can decode it, so a real hidden message rewards the listener who works it out.
Try it
If you hear Morse in a song or film and want to know what it says, write the dots and dashes into the translator, with spaces between letters and / between words. The decoder can listen through your microphone while the audio plays, though clean, steady tones decode far better than music with other instruments over the top.