A pacemaker (from the English pacemaker - from the Latin pace - “step in music”) is a performing musician in a rock band or brass band, whose part remains the same throughout most of the concert. In the usual sense, a performer who announces the titles of compositions and leads the music, including the lyrics of the works. As a rule, what remains hidden from public attention is the fact that the entire set of compositions does not belong to the pen of just one musician; In addition to the name, a signal is still broadcast about the beginning of some part of the musical work. So the performer in this case is all