Soulful Calm Beats – Focus / Study / Work / Relax | 勉強用 / 作業

Smooth Velvet R&B

Calm Soul Grooves – Relaxing Ballads for Study & Work |

Smooth Velvet R&B

Mellow Soul Chill – Smooth Ballads for Focus & Study | リ

Smooth Velvet R&B

Smooth Soul Grooves – Chill Ballads for Study & Work | リ

Smooth Velvet R&B

Gentle Soul Lounge – Relaxing Ballads for Study & Work |

Smooth Velvet R&B