The BLSO was founded in 2016 by Seb Valentine, a serving detective and graduate of the Royal College of Music, to improve wellbeing in the emergency services through music. Emergency services personnel are more likely than the general public to suffer from poor mental health because of the stress of the job and exposure to traumatic events. They are also less likely to seek help. Music, especially group music making, has been scientifically proven to boost mood and help people connect.