4 Hz Delta waves | Deep sleep
4 Hz Delta waves | Deep sleep a song by avatar zen on Soniditos
4 Hz Delta waves | Deep sleep
by
avatar zen
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7 Hz Theta waves | Meditation
by
avatar zen
,
13 Hz Alpha waves | Relaxation
by
avatar zen
,
14 Hz Beta waves | Concentration
by
avatar zen
,
40 Hz Gamma waves | Enhancing learning
by
avatar zen
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