a comical tale inspired by Tom and Jerry. Banks wrote the lyrics with a cartoon-like feel. The song started out what Rutherford called "an involved epic" until the group abandoned this idea and approached it in a different way. "Blood on the Rooftops" is a song concerning "the tedium and repetitiveness of television news and the overall mocking disgust that must sometimes accompany watching the news happen". The music to its chorus was written by Collins with Hackett writing the music to the verses, the song's lyrics and its classical guitar introduction. According to Hackett, the song was a love song originally. He explained, "When I heard the other lyrics on the album, there was a bit of a romantic tinge anyway, so I decided to go right the other way and make it as cynical as possible." It also addresses some political issues, which Genesis had previously stayed away from. Banks and Rutherford both claimed it was Hackett's best song as a member of the group. "Unquiet Slumbers for the Sleepers..." and "...In That Quiet Earth" are two linked instrumental tracks. The titles refer to the last paragraph of the novel which inspired the album's title – Wuthering Heights, by Emily Brontë, which Banks had spotted in the book and thought the first title suited its mellow atmosphere. The tracks were written so that the band could showcase their instrumental talents, and stretch their musical skills as well as the songwriting. "Afterglow" is a straightforward and concise love song, and an important development in the group's career, as it proved to them they could write short songs that they still liked. In contrast to the amount of time it took Banks to develop "One for the Vine", he wrote "Afterglow" "just about in the time it took to play it". Banks said the song "is about a reaction to a disaster and the realisation of what's important to you, in a slightly cataclysmic way [... I] made the chorus the essence of what the person is actually thinking". The ending features Collins' layered vocals. A few days after he wrote it, he came to the sudden realisation that its melody resembles that of "Have Yourself a Merry Little Christmas", which led to him playing it back and concluding "it wasn't the same". A Moog Taurus, a foot-operated analog synthesiser, was used to create a drone effect. It was a