Traditional doom metal is a subdivision of doom metal that refers to bands who continue the style of the genre's pioneers such as Black Sabbath and Pentagram. Traditional doom metal bands more commonly use higher guitar tunings, and do not play as slow as many other doom bands. Traditional doom bands typically play slow to mid-tempo songs with a thick and heavy sound. Vocals are usually clean with the occasional growl or scream. The lyrics in traditional doom usually are eerie and dark like other doom metal divisions. Some modern bands that play traditional doom metal are Orodruin, Reverend Bizarre, and Witchcraft.