also: プログレッシヴメタル
noun
progressive metal
A subgenre of heavy metal music that incorporates complex structures, odd time signatures, and influences from progressive rock.
彼はプログレッシブメタルのバンドでギターを弾いている。
He plays guitar in a progressive metal band.
プログレッシブメタルは変拍子が多い。
Progressive metal often uses odd time signatures.
Progressive rock, the parent genre from which progressive metal evolved; typically less heavy and without the metal distortion.
Heavy metal, the broader genre; progressive metal is a subgenre that adds complex, progressive elements.
Borrowed from English 'progressive metal', combining 'progressive' (referring to progressive rock influences) and 'metal' (heavy metal music).