derivative rock

derivative rock

[də′riv·əd·iv ′räk]
(petrology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Thirty Seconds to Mars, America (Interscope): That multitalented Jared Leto is somehow responsible for this derivative rock -- think Imagine Dragons with their passion replaced by empty sloganeering -- is one of the year's biggest mysteries.
Churned out in bulk by clock-punching composers and session players (we see one pro go from first reading to final track in 49 minutes flat), the majority are trite odes to Jesus, Elvis or marital fidelity, set to generically derivative rock or country tunes.