Se hace saber (one proclaims) is the Spanish phrase traditionally used by the pregoneros, public criers on behalf of the local authorities, to announce themselves in the market squares in order to convey important messages to the general public. This phrase was always preceded by a short melody played on a brass instrument. The horn has always fulfilled this communicative announcement function, e.g. also for the post office or hunting.

The pregoneros and other pre-technological means of com...