Is the quality song dead? Is it being killed off by big meaty dance grooves? Can anyone write meaningful lyrics anymore? The art of the adult songwriters who lay their souls open for our inspection is the subject of tonight's programme, including Kate Bush, Carly Simon, Lou Adler, Cat Stevens, Paul Simon, Jim Croce, Elton John, Leonard Cohen, John Oates, Tori Amos, Paddy McAloon and Billy Bragg.