Assertion: heavy metal | /r/DefinedAs | use of experimentation
Facets:
value: loosely
type: MANNER
Source sentences:
text: Avant-garde metal or avant-metal, also known as experimental metal, is a subgenre of heavy metal music loosely defined by use of experimentation and characterized by the use of innovative, avant-garde elements, large-scale experimentation, and the use of non-standard and unconventional sounds, instruments, song structures, playing styles, and vocal techniques.