Designed as a place more than a playlist, “Public Library” leans on streets, rooms, and city weather. Its study character sits inside the wider urban catalog: detail in the foreground, weather and room tone holding the horizon. Iris framed the garden so you can use it for creative focus and background calm without fighting a rigid loop. Around 10 sound bubbles carry the mix — each one a movable source in space. Expect a palette of public, library, study, urban, blended so no single layer has to carry the whole hour. Drag bubbles nearer when you want presence; push them back for depth. Headphones help the 3D pan bloom; speakers still work if you prefer the room to fill softly. On Sound Bubbles, this is a living garden: free ambient audio you can rearrange in 3D instead of locking into a single loop.