サビ編集・ビート編集
(コード編集・メロディ編集はPC版をご利用ください)
It is easier to edit on the following song: 【IAオリジナル曲】無限世界（2019 ver.）
Unlink from this group (This song will stop sharing the "Music Map" with the following group and have its own "Music Map")
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