After the first initial 15 min of chillin' out...........a white sheet of light covered me.Crazy cause there is NO light in the tank.Then I heard pulsating binaural beats,techno style.When the sheet of white light lifted, the beats intensified,and I started doing forward rolls.Funny,I was laying flat on my back!! THEN the music came on to end my session.90 minutes had passed!! Felt MORE than relaxed the rest of the day!!! I ate at a Mexican restaurant immediately after.The music sounded awesome,and the burrito tasted great!The tank heightens your senses.When I was crossing the road,I was so relaxed.I said to myself,"The cars will slow down,they wouldn't hit me." Float On!