A concert begins with a brief introduction by the band’s singer, usually telling a story about what he wants to do during the show. Then he starts to sing the first song. After that, the lights come up and the rest of the band members join him. Most artists would play more than one song.
But a performer would have to end their performance if the audience doesn’t applaud. If the crowd claps enthusiastically, the singer would continue with another song. In general, the number of songs performed depends on the length of the set.
The average length of a set can be anywhere between 15 to 25 minutes, which means that you will spend anywhere from 30 to 45 minutes on the stage. An entire music concerts this weekend might take you up to 2 hours, but you might be stuck on stage for 3 hours if you have several bands that play after the first band.
If the first band performs for 20 to 30 minutes, the second band will have to perform for at least 30 minutes. Some bands can only make a quick set;
they might last 5 to 10 minutes, but if you watch the audience closely, you will probably see that they aren’t interested in seeing more than that.