This is a traditional bullfighting song made famous by the great trumpet virtuoso Rafael Mendez. There has been a short introduction added quoting part of Bizet's Carmen. This introduction serves to set up both the soloist and the famous "bull" tune played by the low brass. The use of rubato should move the tempo quite dramatically within the solo sections. Most of the technical figures in the solo part should be played in time so they line up with the other parts.