[SUBS]RANK

【9つのソルフェジオ周波数】174Hz〜963Hzの睡眠導入BGM…不安・緊張・脳疲労を手放し、心身を整えながら深い寝落ちへ導く3時間【熟睡・安眠】

This YouTube video has 20 000 views and was published Sep 2, 2026 on 静かな瞑想と癒しの音楽【Quiet Meditation and Healing Music】. That is 0.4x the channel's average views.