Not a band, but rather a genre. Basically all it is is a single note or chord being played again...and again...and again...throughout an entire song...a lot of the time with no lyrics. Yeah there's some change, but it's too subtle to be noticed. Some examples of these "drone bands" are Sunn O))), Boris, and Earth. Is this really music? Is it artistic? Is it just stupid? Does it really have a purpose? Just give me your thoughts and opinions because, frankly, it's been rattling in my brain for some time now.