Setsu Getsu Ka
Background and composition. "Setsu Getsu Ka" was written by Miyuki Nakajima and arranged by Ichizō Seo. It marks Kudo's second single to be produced by Nakajima and Seo, the first being "Gekijō". The song is composed in the key of B minor and Kudo's vocals span from B to A in modal voice, and up to C in head voice. Lyrically, Nakajima writes about a protagonist's frustrations with a lover unwilling to be vulnerable with her, imploring her subject to "set her free from the loneliness". Kudo was praised for her earnest interpretation of  Nakajima's lyrics. Cover version. Nakajima first covered the song in concert during her "Miyuki Nakajima Concert Tour 1998" tour. She later recorded her own version of the song, which was released in 2002 on the album, "". Chart performance. The single debuted at number 23 on the Oricon Singles Chart, selling 21,000 copies in its first week. It fell to number 34 the following week, with sales of 13,000 copies. "Setsu Getsu Ka" stayed in the top 100 for a total of twelve weeks.