α波とギターで全身の疲労回復 作業, 瞑想, 睡眠用BGM 毎日のリラックスをサポート (自律神経を整える睡眠用 森 鳥) - Recovers from Whole Body Fatigue With Alpha Waves and Guitar BGM for Work, Meditation, and Sleep Supports Daily Relaxation (Mori Tori for sleep that regulates the autonomic nervous system)