This article reports a study of the musical appreciation of carillons consisting of computer-synthesized major-third bells, minor-third bells, and "neutral-third" bells. Paired comparison judgments of melodies played on these instruments were obtained from a group of carillon majors, a group of other music students from a local conservatory, and a group of nonmusicians. The results provide evidence that each group of subjects can hear the difference between the three computerized instruments, but each group evaluates these perceptual differences in a different way.
Pitch salience of a variety of different complex sounds was measured through open-set melodic dictation tests using five musically experienced observers. The experimental task on each trial was to play back all notes of a four-note melody, randomly selected from an eight-note diatonic major scale, on an eight-note keyboard. Data were reduced to a correlation measure which addresses mostly the degree to which ordinal or contour information is preserved in the sequence of sensations, and also to a percent correct identification measure which tests preservation of ratio information. The two measures are in some cases very different, and it is proposed that those sounds that seem to convey mostly ordinal and little ratio information should not qualify as sounds that evoke true pitch sensations.