Shinonome Kenkyuujo no Tanoshii Kenka

 is a musical composition from the Nichijou soundtrack. As its name suggests, it was used exclusively in scenes feautring the Shinonome household. It was used in Episode 1 (Part 1), Episode 2 (Part 6), Episode 3 (Part 12), Episode 4 (Part 17), Episode 5 (Part 21), Episode 6 (Part 25), Episode 7 (Part 30), Episode 8 (Part 34), Episode 9 (Part 38), Episode 10 (Part 42), Episode 11 (Part 46), Episode 13 (Prelude where Nano assures Hakase she's not going anywhere, at least in that sense), Episode 14 (Part 56), Episode 15 (Part 61), Episode 17 (Part 68), and episode 19 (Part 80).