Principles of melodic implication were evaluated in an analysis of folk song melodies. Implicative and closural intervals were identified in 513 Bohemian melodies, and the note following each interval (the continuation note) was analyzed. Multinomial log-linear analysis was conducted to assess the extent to which Narmour's (1990) implicative principles could predict continuation notes. Support was found for five principles, with slightly greater support for strongly implicative intervals than for closural intervals, and for large intervals than for small intervals. Alternative models of melodic implication are discussed.