They are always called "progressive rock/metal." Although, I honestly don't know what the hell that means. The best I can figure (when bands are called that) is that they play, on average, longer songs, with longer periods of no singing; they extensively use keyboards; the lyrics are "philosophical" or serious, rather than about having a good time; and they don't play the same melody or rythym throughout a single song. Why any of that makes a band "progressive" is beyond me.