There are several different artists named Calm. 1) A Japanese ambient electronica band. 2) Time (Raps) and AwareNess (Beats) are one. 3) A Swedish 6-piece experimental/nu metal band. 4) Calm is also a Romanian rock band, still underground but quickly making a name for themselves. 5) There also was an American nu-metal band (ex-Seeded Crown) 6) A mid-90's post-hardcore band featuring members of Mohinder.
The Stockholm based band recently released their second album for free on their website, with all songs available for download.