1. Obviously, there are some people who less bother about music, of course, it depends on what sort of music they are into.
(bother about / with sth: quan tâm đến cái gì, dành thời gian làm gì
depend on sth: phụ thuộc vào cái gì
sort of music: loại nhạc)
2. In concerts, many artists or bands may do slightly different versions of their songs. They might speed up or slow down or play acoustically.
3. I see everyone going to a concert at least once to experience their favorite music in a new interesting way.