Falling from Grace

Yorushika's 'Ochiyou', I love the lyrics, of course, but I especially love the way she sings. She changes her singing style depending on the song, but it's like folk music, how should I put it... I'm not very familiar with that genre... I also like the production where a cough comes in during the interlude and then it sharply switches. There are a lot of sounds they intentionally add, right? I've fallen for it hook, line, and sinker.