The event is produced by Studiomusica and Jo Champa and presented by the Grammy Museum Foundation.

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Two of three other such spots in the country are nearby: the Champa ruins at My Son and the ancient trading post of Hoi On.

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This was the period when the city of Angkor in present-day Cambodia went into rapid decline, a fact that some historians have blamed on invasions by the rival Siamese and Champa kingdoms.

ECONOMIST: Tree rings are laying bare the climatic history of Asia