The 4K release cleverly includes both. Many fans consider the Shinoda/Trapanese score to be more bombastic and Western-friendly, while the original Indonesian score is more atmospheric and traditional. Having both options allows you to tailor your experience.
: Look for the "Unrated" Blu-ray, which includes the original Indonesian language track and the choice between the original Indonesian score by Fajar Yuskemal or the international score by Mike Shinoda. Soundtrack vs. Audio Track
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Select the original Indonesian audio track (often labeled as id or ind ).