Even as a serious-minded singer/songwriter, Cat Stevens never stopped being a pop singer at heart, and with Teaser and the Firecat he reconciled his philosophical interests with his pop instincts. Basically, Teaser's songs came in two modes: gentle ballads that usually found Stevens and second guitarist Alun Davies playing delicate lines over sensitive love lyrics, and up-tempo numbers on which the guitarists strummed away and thundering drums played in stop-start rhythms. There were also more exotic styles, such as the Greek-styled "Rubylove," with its twin bouzoukis and a verse sung in Greek, and "Tuesday's Dead," with its Caribbean feel. Stevens seemed to have worked out some of his big questions, to the point of wanting to proselytize on songs like "Changes IV" and "Peace Train," both stirring tunes in which he urged social and spiritual improvement. Meanwhile, his love songs had become simpler and more plaintive.