Symbiosis is a British musical ensemble which creates relaxing, ambient music. Symbiosis was first formed in 1987 and consisted of a trio with: flautist, John Hackett; guitarist and cellist, Richard Bolton; and singer, flautist, keyboard player and percussionist, Clive Williamson. Symbiosis' music is used mainly by individuals, therapists and their clients, hospitals, and businesses as a means of relaxation. Symbiosis' music is free-flowing and melodic, as to not disturb deep relaxation of the listener. The group is best known for its album Touching the Clouds (1992), which was found to produce the lowest heart-beat rate in a test at Kingston University and was later recommended by doctors at St Bartholomew's Hospital in London to help reduce stress.