Assertion: heavy metal | /r/HasProperty | melodic
Facets:
value: at once
type: TEMPORAL
value: importantly
type: DEGREE
Source sentences:
text: Importantly, heavy metal is melodic, and on a structural level, is a form of pop music.
text: Capitalizing on their unique talents, Priest ushered in an era of heavy metal that was at once highly rhythmic and melodic that interchanged between breakneck and more reserved tempos (sometimes within one song).