Focus music is designed around entering and maintaining a focused state. It usually has no lyrics, so language does not interfere with working memory; the rhythm stays stable; the dynamic range is controlled so there are no sudden loud or quiet passages; and the structure avoids emotional peaks that can pull attention away. Ordinary background music does not necessarily account for these factors, so a chorus or dramatic section may suddenly capture attention during work.

Keep it at a volume where you can hear it but do not actively listen to it. It should sit in the background, not become the foreground. The exact level varies by person, but around 50% volume is often a good starting point. Too quiet and it gets masked by the environment; too loud and it starts consuming attention.

You can, but it is better to pair it with the Pomodoro method: 25 minutes of focus plus 5 minutes of rest. During breaks, switching to relaxation music or white noise helps the brain complete a cycle of switching and recovery, which supports better sustained productivity.