From the recording Sonic Spectrum: The Complete Collection
Provide a good, relaxing but non-drowsy ambiance with our latest study aid music for kids, “The Knowledge Playground”, which is also ideal to be used by teens and adults. This music track contains soft brainwave entrainments that range from 3.5Hz to 10Hz, which are associated with internal focus, promoting accelerated learning and increasing memory retention, reduces irritability and impatience, and is helpful when learning new information. The carrier frequency of 136.1Hz gives a constant effect of relaxation. Listen with or without headphones, stereo speakers preferably, and always keep the volume at a comfortable low setting.
Watch the full video at https://youtu.be/xrMsZ4wCGck
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