Melophobia

Webbed Hand Records  (Label) says:

Rain is a series of conceptual tracks produced for Webbed Hand Records. Each "Rain" is a CD-length ambient recording ideal for quiet listening while meditating, writing, or going to sleep. Typically the recordings in this series are minimalistic soundscapes, with motifs played out cyclically rather than progressively, in order to induce relaxed states.

(see also: Rain 1)