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In page Uroboros (album):

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The band recorded with many new instruments, including mandolin,[4] congas, electric sitar,[5] and biwa to create a unique sound,[6] and vocalist Kyo sets emphasis on "non-screaming vocals,"[6] accentuating softer composition, while still blending in his unique screams, screeches, and polished death metal growls. For the album, Kaoru and Die utilized several guitar models and techniques; an unconventional method, some of the guitars were recorded directly from amps.[7]