【浮遊する作業用BGM】The ambient drones of Bill Baxter/その15 2020.11.11 作業用BGM 浮遊する作業用BGM Goodnight World Goodnight World by The ambient drones of Bill Baxter Endless Beauty Endless Beauty by The ambient drones of Bill Baxter Voice of the Mountain Voice of the Mountain by The ambient drones of Bill Baxter