hard rock 
noun [mass noun]
Highly amplified rock music with a heavy beat.I wasn't into hard rock or heavy metal at all, as I found it annoying....
- Around me, hard rock and heavy metal and elaborate rap music mixed and blared into one loud noise in these streets.
- Somehow, the band manages to keep its furious mix of polka, punk, klezmer, hard rock and free jazz in sync.
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