Adagio is a French symphonic progressive metal band. Stephan Forté, the band's guitarist, is considered the creative force behind Adagio. The band has so far released four studio albums and one live album.

Adagio's music is characterized by technical precision, dark, dense orchestration, complex lead work, and a driving rhythm section. However, on the group's third studio album, 'Dominate', they added death grunts to their sound.

'Archangels in Black' was the first album to feature Christian Palin on vocals, who had sent a demo to the band in 2004 but didn't get accepted due to his deep Finnish accent. When Gus Monsanto, the 2004 pick for the vocalist, left the band in 2008, Christian Palin was accepted into the band. According to the band's website the "compositions are the ultimate between melodic and extreme metal, and can be considered as a more brutal version of 'Underworld'.

Current members

* Guitar: Stephan Forté
* Bass: Franck Hermanny
* Keyboards: Kevin Codfert
* Drums: Eric Lébailly

Former members

* Vocals: Christian Palin (recorded Archangels in Black. 2008–2010)
* Vocals: Gus Monsanto (recorded Dominate. Left April 9, 2008.)
* Vocals: David Readman (Recorded Sanctus Ignis and Underworld. Left 24 July 2004 because of conflict between Readman's and Adagio's management.)
* Keyboards: Richard Andersson (Recorded leads on Sanctus Ignis. Left 2002.)
* Drums: Dirk Bruinenberg (Recorded Sanctus Ignis and Underworld Left 15 September 2003 in the middle of the Underworld tour due to schedule conflicts.)