Assertion: drum | /r/HasProperty | a genre of electronic music
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Source sentences:
text: Drum and bass (also written as "drum 'n' bass"; commonly abbreviated as "D&B", "DnB" or "D'n'B") is a genre of electronic music characterised by fast breakbeats (typically 165-185 beats per minute) with heavy bass and sub-bass lines, sampled sources, and synthesizers.