English sentence prosody provides cues to both focus structure and speaker attitude. Taking the phonological model of intonation developed by Pierrehumbert (1880 et seq.) as point of departure, this work illuminates the communicative function of English pitch contours by (1) giving a detailed survey of phrase-final contours found in statements and questions, and (2) investigating what attitudinal features determine choice of phrasal tones in these utterance types. This comprehensive study will be of interest to linguists in a number of fields, ranging from prosody to semantics, pragmatics, and discourse analysis.