Relaxed and Quiet Mind (6.1 Hz Theta Frequency Binaural Beats)

歌曲	Relaxed and Quiet Mind (6.1 Hz Theta Frequency Binaural Beats)
歌手	Binaural Beats Research
专辑	Theta Waves Zen Meditation: Binaural Beats & Isochronic Tones Music & Nature Sounds