In musical notation, ♮ is a symbol for natural, an accidental used to cancel a flat or sharp from either a preceding note or the key signature. Like the sharp sign ♯, the natural sign is derived from a “square” b used to denote B♮ in Gregorian chant manuscripts.
In Russian musical slang, бекар (from French bécarre) stands for delay or cancellation of an event, a failure to fulfill promises etc.; the derived verbs бекарить and забекарить mean “to cancel”, “to skip”, or “be late”.
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