When one really tries to focus and get things done, one tends to tune into low-fi background sounds. But how does it actually work? A video from Cheddar.com breaks the phenomenon ‘Focus Music’ down: warm noises fading into the background & amplitude modulations that create beta rhythm brainwaves. Cheddar also speaks to Kevin Woods (Director of Science at Brain.fm) who created an app for this particular reason: staying focussed. It’s fascinating to learn the history of Muzak, a brand of background music that was created to stimulate the work force by using brain entrainment techniques.