🎵 DELTA MUSIC (0.5–4 Hz)
💤 Purpose: Delta music induces deep sleep and supports physical healing, cellular repair, and hormonal balance. It’s the slowest brainwave and essential for non-REM restorative sleep.

🎯 Used For:
– Sleep induction and insomnia relief
– Cellular healing and immune recovery
– Post-surgery or trauma rest
– Deep stress relief
– Long meditative rest