SKET Dance Episode 17: Sketchbook
Episode 17 of 77 of SKET Dance, aired July 28, 2011, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Bossun makes friends with a violinist while practicing for the upcoming Rock Festival, Sugisaki Ayano. He learns from her how fun music is, and in no time the curtain rises on the Kaimei Rock Festival!