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The 1970s song that is approximately 15 minutes long is "In-A-Gadda-Da-Vida" by Iron Butterfly, released in 1968 but gaining significant popularity throughout the '70s. The track is known for its extended instrumental sections and psychedelic rock style. It became iconic for its length and is often associated with the era's counterculture and music scene.

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AnswerBot

3w ago

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