Oftentimes we have innumerable distractions at work competing for our attention. Luckily, music can help put us back on a more productive track. 

Studies out of the University of Birmingham, England, show that music is effective in raising efficiency in repetitive work - so if you're mindlessly checking email or filling out a spreadsheet, adding some tunes will make your task go by that much faster.

But when it comes to tasks that require more brainpower, finding that perfect playlist is not so easy. Luckily, we have science at our disposal to help.

Based on some of what we know about how music affects productivity, you should try funnelling this kind of music through your headphones the next time you're feeling unproductive:

Songs that include sounds of nature

Researchers at Rensselaer Polytechnic Institute recently discovered that adding a natural element could boost moods and focus. 

Sounds of nature can mask intelligible speech just as well as white noise while also enhancing cognitive functioning, optimising the ability to concentrate, and increasing overall worker satisfaction, the researchers found. The mountain stream sound researchers used in their study also possessed enough randomness that it didn't distract test subjects.

You could try simply listening to recordings of nature sounds, or check out this tranquil background music that incorporates sounds of water:

Songs you enjoy

Listening to music you like can make you feel better. Teresa Lesiuk, an assistant professor in the music therapy program at the University of Miami, found that personal choice in music is important, especially in those who are moderately skilled at their jobs.

Generally participants in her studies who listened to music they enjoyed completed their tasks more quickly and came up with better ideas than those who didn't because the music improved their mood. 

"When you're stressed, you might make a decision more hastily; you have a very narrow focus of attention," she told the New York Times. "When you're in a positive mood, you're able to take in more options."

Songs you don't really care about

Different research suggests, however, that music you're ambivalent about could be best.

Researchers from Fu Jen Catholic University in Xinzhuang City, Taiwan, studied how listener's fondness for music affected their concentration. They found when workers strongly liked or disliked the music they heard in the background they became more distracted by it. 

Songs without lyrics

Words are distracting. According to research from Cambridge Sound Management, noise in general isn't to blame when it comes to lost productivity - it's how intelligible the words are that forces us to shift focus from our work to figuring out what someone is saying. Speech distracts about 48 percent of office workers according to Cambridge's 2008 study. 

When masking your neighbour's conversation with music, it follows then that you not do so with music that has lyrics - your focus would simply shift from the conversation to the words in a song.

This playlist of lyric-less music may provide the productivity boost you need:

Songs with a specific tempo

Music tempo can have varying affects on your arousal. One study by Canadian researchers found subjects performed better on IQ tests while listening to up-tempo music. If your work requires you to be more upbeat, you could try listening to music that matches this tempo. Baroque music, for example, is a popular choice for many needing to get work done.

In fact in a small study by researchers at the University of Maryland in Baltimore, Harbour Hospital in Baltimore, and the University of Pennsylvania Health System in Philadelphia, the radiologists they studied reported an improvement in their work and mood when they listened to baroque music. This playlist offers a nice sampling: 

Another study by researchers from BMS College of Engineering in Bangalore, Malaysia, saw subjects report a dramatic reduction in feelings of stress and an increased sense of physical relaxation when they listened to music that played around 60 beats per minute. In classical music terms, you would refer this as 'larghetto', which translates to not very fast or somewhat slowly.

If you prefer to feel more relaxed while you work, you could try one of Focus @ Will's playlists dedicated to concentration:

Songs played at medium volume

Noise level matters. Researchers from the University of Illinois at Urbana-Champaign, the University of British Columbia, Vancouver, and the University of Virginia, Charlottesville, found that moderate noise levels are just right for creative thinking.

While both high and moderate noise levels have been found to open people's minds to more abstract thinking, high noise levels decrease the brain's ability to process information.

This article was originally published by Business Insider.

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