Global Rainforest Lullaby (Gentle REM-like dreams without awakening)

[start] [Global constraint: natural rainforest only; exclude instruments/human voice; maintain ultra-soft dynamics; avoid abrupt events] [Spatial: slow alternating stereo rocking (~0.07–0.1 Hz); keep rain centered-wide as anchor] [Sleep-stage intent: REM-like light imagery while staying asleep; cyclical, predictable motifs] [0:00–1:00 Intro] [Steady gentle rain as pink-noise base + soft stream underneath] (Very distant Amazon howler motif, barely audible) [1:00–3:00 Ambient Layering] [Congo frogs/katydids pulse alternately L↔R in rounded waves] (New Guinea gecko “to-kay!” extremely rare, hushed) (Sundaland hornbill wing sweep passes quietly once per minute) [3:00–5:00 Minimal Progression] [Regional voices cycle in soft rounds; never overlap densely] [Maintain rain/stream constant; subtly lower highs over time] (Thunder sub-rumble once per ~90s, almost subliminal) [5:00–6:30 Outro] [Wildlife gently disappears; rain remains, then narrows and fades] [Final 30s: only soft rainfall; taper to silence] [end]