SOUND OF RAIN????

Going back to  those old days... when world was full of water... world was a single ocean. the time before the birth of the first creature which had life in it. world was silent after a big storm which was the cause of the big ocean . rain was the first activity in this world. do you think rain has a sound. there is no sound for rain except the thunder sound after the lightning.but of famous novelists have written about the sound of rain. sound of rain is the rain drops hitting the ground or in trees, buildings, sheets etc.... then how was the rain before the ocean was formed. was there any sound for the rain. at that time there was hardly any soil or trees  i invite my readers reaction to this sort of an out of fantasy situation. you can improve your creativity by expanding in to any limit....