The purpose of this study was to determine the effect of varied accent/articulation marks on listeners' perceptions of forcefulness of attack and length of sustain in trombone articulations. Musicians (N = 68) were asked to listen to a series of seven short musical excerpts in which a predefined set of pitches would be accented. Participants rated each example on forcefulness of attack and length of sustain by using a 5-point Likert-type scale. Results indicated significant differences between attack ratings and length of sustain ratings for the seven articulation marks. Additionally, there was a significant interaction between major and attack rating. A free response portion allowed listeners to assign an articulation mark to the tones they heard. Results indicated more agreement for one-dimensional symbols than for multi-dimensional symbols; however, uniformity of agreement was not achieved on many of the symbols. Generalizations of forcefulness of attack and length of sustain of the indicated symbols and pedagogical implications are discussed. (Contains 7 tables and 3 figures.)