for your info, this is a computer generated voice. pretty cool
Song: You
Original sang by: dai
from Higurashi no Naku Koro Ni Original Sound Version and Extra Sounds

Song: Tori no Uta
Original sang by: Lia
from AIR

Credits to Windbell

Song: Reset
Original sang by: Fukuhara Kaori
from Lucky Star Chara Album Vol 3 (Hiiragi Tsukasa)

Credits to bakavic