Hard Rock -

, a homemade treat created by boiling sugar, corn syrup, and water until it reaches the "hard-crack" stage (300°F).

These are strongly bonded igneous, metamorphic, or sedimentary rocks like granite, basalt, and marble . Hard Rock

It emphasizes the electric guitar, often featuring repetitive riffs and complex solos. , a homemade treat created by boiling sugar,

Iconic bands like Led Zeppelin, Deep Purple, and AC/DC defined the sound with anthemic rhythms and thundering drums. or sedimentary rocks like granite