Describe British heavy metal.

What will be an ideal response?

Power at the center of the style, much use of power chords and low tuning; Group names such as Black Sabbath, Judas Priest, Iron Maiden as well as album covers and posters with symbols of witchcraft and death, shocked some parents and others; Powerful images supported by loud, aggressive music that often included low, descending bass riffs and psychedelic-influenced instrumental improvisations.