【勉強用・作業用BGM】α波で超集中・記憶力アップ【波の音×オルゴール】
Published March 4, 2020
Views 94.4M | Likes 678K | Comments 54.3K
Ranked #61,940 globally by view count, this video has accumulated 94.4M views since it was published on Mar 4, 2020.
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