V.V.V.V.V.
Houses Ov Mercury
There is melodic death metal (Intestine Baalism, Dismember, Acephalus, etc.) that is structurally and aesthetically death metal, with definite injections of melody into the riffwriting (as opposed to atonality which a lot of OSDM, etc. employs), and there is "melo-death" which is basically, heavier, more angular heavy/power metal with harsh vocals.