? ??? ???? ????? ??? ???? ?? sky ???? ?? ??? ?? ??? ??? ???? ???? ??? ???? ??? ??? ???. ???? ??? ? ??? ?? ??? ??? ? ?? ?? ??? ?? ?? ??? ??. ???? ???? ??? ??? ??? ???? ????? ??? ?????. Most karaoke devices have technology[27] that electronically adjustments the pitch on the new music to make sure that beginner singers can opt for a important that

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