This collection of papers by an international group of authors honors Jonathan Kaye's contributions to phonology by expanding some of Kaye's ideas to a variety of theoretical topics and languages. The set of ideas discussed or used in this collection includes: empty categories, licensing relationships and constraints, a restrictive two-levelled approach to phonology (without rule ordering or constraint ranking), a restrictive theory of syllabic representation (without the codas constituent and with exclusively binary branching), theories of the phonology-phonetics interface in which phonology is motivated independently of phonetics, and the metatheoretical flaws in a number of widely accepted but rarely questioned views on phonology.