Rumzi's post and Mike's observation is that we've been focusing on loads of visual material and not a lot of audio examples. While I'm most likely the only one in charge of the audio department, feel free to add anymore music tracks in which you think will contribute to the atmosphere of the game!
Forbidden Siren 2 OST - Awakening
I really like the atmosphere to this one and the use of the vocal is very similar to the sound of chanting used in rituals, particularly that of Tibetan throat singing. I could be utterly wrong but that's what it feels like to me lol.
Hazzy - Meguri Ai
I can really imagine this to be Kemi's theme especially when Yu talks to her on the phone.
Jay Chou - Love in BC
Minus the rapping and the OTT R'n'B beatz, the guitar loop is very much for the 'home/safe' scenes. I can just imagine the player exploring Yu's house to something similar and getting the players to choose what Yu should cook for dinner.