Melodic Death Metal

There are several bands/artists known as Demolition. (1) A Canadian hardcore punk band (2) A UK punk, (3) a Japanese Thrash Metal band and (4) an Irish American Hip-Hop duo made up of the MC Euyo & the DJ Drama. (1) Demolition are a Canadian band from Barrie, ON that play hardcore punk in the style of Altercation, Agnostic Front, and early Madball. They have released one demo and have members from the now broken up band, Planet Danger.
(2) UK Punk:

Mournful Congregation is a funeral doom metal band from Adelaide, Australia, founded in 1993.
The music revolves around melodies on electric and/or acoustic guitar and is further characterised by minimal drums, deep growled and whispered vocals. Main lyrical themes are personal spirituality, mysticism and depression.
In 2009, the band performed live for the first time in their 15 year existence, with 4 Australian shows, and another 17 shows throughout Europe to promote their 2009 album "The June Frost".

There are several bands named Akuma: 1. Australian Death Metal.
One album: "Shrouds of the Final Nothing" (2007) 2. French Melodic Death Metal.
One E.P.: "Under a Killing Moon" (2009) 3. Canadian Hardcore/Punk.
… Des Cendres et du désespoir Issu d’une fin de siècle, Akuma perpétue un rock de combat en marge d’une culture prête à consommer. Safwan (chant, guitare), Sylva (batterie), Yannick (guitare) et Sébastien (basse) prennent le maquis de l’autonomie pour une action terrorock revendiquée.

There are several bands called Amethyst. 1. A trance / progressive house duo. http://www.discogs.com/artist/Amethyst 2. A Melodic Death / Melodic Black Metal band from the Netherlands. 3. Heavy / Progressive Metal band from Australia. 4. A Thrash Metal band from Italy. 5. A Progressive Metal band from Sweden. 6. A Progressive Metal band from the USA. 7. A Power Metal band from Canada. 8. A Power / Thrash Metal band from the USA. 9. A defunct Pop Rock band from Youngstown, OH, USA.