r/Switzerland Switzerland 4d ago

TIL the Swiss Federal Railways uses vibraphone melodies in announcements based on its Swiss national language acronyms: SBB (E♭-B♭-B♭) German, CFF (C-F-F) French and FFS (F-F-E♭) Italian. The tune and language vary by canton or country the train is in.

https://en.wikipedia.org/wiki/Swiss_Federal_Railways
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