【浮遊する作業用BGM】The ambient drones of Bill Baxter/その28 2020.11.27 作業用BGM 浮遊する作業用BGM The Colours of Dusk The Colours of Dusk by The ambient drones of Bill Baxter The Thin Air The Thin Air by The ambient drones of Bill Baxter Juno Juno by The ambient drones of Bill Baxter