Beethoven wrote a number of overtures for his opera Fidelio but he was not entirely happy with them for that purpose, so these overtures have become concert pieces. Leonore No.3 is one of these overtures, and in the middle of the piece there is the following trumpet call, which is played by a trumpet situated off-stage so that it sounds distant. It was surely Beethoven's intention to suggest a bugle call at this point, though in this particular case the notes are not identical to those of a bugle. See the links at the left to download the sheet music or audio files. More bugle calls are listed in our article about the history and cultural impact of Bugle Calls.