To become a musician, one must know how to play an instrument well, know how to blend with other instruments, and keep the beat. You have to keep an eye on the conductor while also looking at your own music. You have to practice more than 30 minutes a day, not including the practices with the entire band. You have to know how to read music; how to count the beat in each measure. All in all, a musician has a fun, tough, and tiring life.