She's actually singing out towards the ocean.
I kinda have a story with her that Lapras communicate via singing (kinda like whales) and she was separated from her pod by researchers (since she is the Lapras you get in Red/Blue). Since Lapras are like... close to extinction, she has a lot of trouble finding her family again, so in her lonely search for them, she sings out to the sea every night in hopes that they may hear her and come find her. ;w;
thank you though! Honestly he captured the feeling I wanted so very well!