Absorbing and remembering new information is best done with the music off, suggests a 2010 study published in Applied Cognitive Psychology, as reported in TIME magazine. Adults aged 18 to 30 were asked to recall a series of sounds presented in a particular order. Participants’ performance suffered when music was played while they carried out the task as compared to when they completed the task in a quiet environment. Nick Perham, the British researcher who conducted the study, notes that playing music you like can lift your mood and increase your arousal — if you listen to it before getting down to work. But it serves as a distraction from cognitively demanding tasks.

That finding is key to understanding another condition under which music can improve performance: when a well-practiced expert needs to achieve the relaxed focus necessary to execute a job he’s done many times before. A number of studies have found, for example, that surgeons often listen to music in the operating room and that they work more effectively when they do. A study in the Journal of the American Medical Association reported that surgeons carrying out a task in the laboratory worked more accurately when music that they liked was playing. (Music that they didn’t like was second best, and no music was least helpful of all.)

Source: Time magazine http://ideas.time.com/2012/09/12/does-listening-to-music-while-working-make-you-less-productive/