Barcelona (Freddie Mercury and Montserrat Caballé song) sessions. The song was co-written by Mercury with Mike Moran, who also appeared in its video and played piano and all keyboards for the studio recording. The song starts with an orchestral introduction, which fades and is followed by Mercury and Caballé singing alternately their solo lines, sometimes merging into a duet. When singing the chorus "Barcelona" and a few other parts for the studio version, Mercury dubs over his voice in his usual multi-tracking style. Mercury leads the song whereas Caballé provides a powerful "background" soprano. Since Caballé covers the soprano part, Mercury sings in his natural baritone voice
Mercury in fish regulations governing the mercury content of a variety of materials. Regulation of these potential sources of pollution reduces the amount of mercury that ends up in fish and, through biomagnification, in humans. In addition to enacting legislation controlling the mercury levels in potential pollutants, Japan has directly influenced the environment by issuing regulations setting acceptable levels of environmental mercury pollution. It is Japan's goal to promote international mercury legislation in hopes of preventing any country from experiencing what it did. Despite Japan's extensive regulation and experience with mercury-based disasters, there is still little information provided to the public. The Japanese