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I'd recommend listening to part 1 and then part 3 after this. It really doesn't matter which order you listen to them in, but the song sounds better with them in order. ( はパート1を聞いて、その後パート3を聞くことをお勧めします。実際にどのオーダーで聴くかは関係ありませんが、曲は順調に聞こえるようになります)
