Well, it's listed in the credits at the end of the clips, but I guess the downsized videos might be too blurry to read.
Anyway,
Nakanai Kimi to Nageki no Sekai (the first MAD, based on Onikakushi-hen)
Featured Song: bewailing
Singer: Shinra Etsuko (新良 エツ子)
Music/Arrange: Hyomoto Yuuji (表本 裕二)
Nakanai Kimi to Nageki no Sekai -Soshunfu- (the second MAD, based on Watanashi and Meakashi-hen)
Featured Song: Tsuki wa Noboru, Watanashi wa Utau (月ハ昇ル, 私ハ詠ウ) (The Moon Rises, I Sing)
Singer: Shinra Etsuko
Music/Arrange: Hyomoto Yuuji
Both Shinra Etsuko and Hyomoto Yuuji belongs to
ALTERNAIT, one of the groups who participated in the creation of these MADs. These songs were produced specifically for these videos.
If you looked at my
first post, you'll notice that there's a third video, Utage (which happens to be my favorite), based on Tatarigoroshi-hen. But for the sake of not spoiling people too soon, I won't put that one up until the anime finishes airing Tatarigoroshi.