Faeryhell is a french "Progressive Power Metal" band.
This "barbarous" name was born of the fact that the band's music, originally Power-Metal, sounds more and more like Progressive Metal.
Anyway, it's always hard to define a music with words, so the best way to discover Faeryhell is obviously to listen to their songs.
The band is actually composed of 5 members : a singer, a drummer, a bass-guitarist, a guitarist and a keyboardist.