“…To exemplify a system-based approach she chooses a recent study by Peter Lefferts which assigns tonal types on the basis of cantus final and signature types (of lower voices, usually). 1 Firstly, Fuller questions the nature of Lefferts's statistical results, since`half of the tonal types postulated on systematic grounds account for only five percent of the repertory' (p. 63). Her more trenchant objection to Lefferts's taxonomy is that he`privileges external signs that bear the appearance of objective markers' (p. 63).…”