The early 2000s was basically the zenith of the European power metal scene in a collective sense, seeing some of the most brilliant works coming out of a host of different bands from north to south. Two particular bands on the the northern end of things in particular were that of Nightwish and Sonata Arctica, the latter of which saw their magnum opus "Silence" released at around the time vocalist Tony Kakko made this one time studio collaboration with Nightwish. This is both bands before they abandoned their roots and saw key members of their lineups cut ties for greener (though not as green as the original) pastures, ergo this is both bands back when they were actually playing power metal rather than experimenting with mallcore and modern pop influences.
This EP basically centers around the Gary Moore cover that it's named after, which is both brilliantly innovative in its adaptation and also very faithful to the original…
The Symphony of Sirens. In 1922 Arseni Avraamov composed and conducted a visionary public sound event, activating the entire port city of Baku: its factory sirens, the ships horns of the entire Caspian flotilla, two batteries of artillery, several full infantry regiments, trucks, seaplanes, 25 steam locomotives, an array of pitched whistles and several massive choirs. Constantly referenced but forever lost, this extraordinary event is here painstakingly reconstructed and spatialised to approximate the original experience.(Booklet Extract)