"nature/ecology/peace & love stuff"
Starting, I believe in 1970, Atlantic Records put out a series of 11 ENVIRONMENTS sounds records.
The interesting and totally unique one is Environments 3 where side one is the 34 minute long , "be-In". Recorded in '69 in Central Park it is a slice of that slim timeline with chants, busker music,hippies recorded in the far background (with nature sounds foremost) almost like even then that whole ephermal scene was dissipating into the mists of time