Sleep, relax, meditate or drown out annoying coworkers with the deep bubbling sounds of an ancient Appalachian creek, spatial audio tearing thunder, waves of red / brown noise, an A432hz binaural tone with a difference of the Schumann frequency and an A Major 7 chord gently inverting up and down. Ancient Creek Sounds - Stereo Field Recorder Brown Noise - Moog One Tearing Thunder - Stereo Field Recorder Binaural - Precise Digital Generator AM7 Chord - Arturia Minifreak