Newly developed methods for evaluating subjective impressions of musical performances are introduced. Performances of the Promenades in "Pictures at an Exhibition," played by three musicians, were used as stimuli. In Experiment 1, the impressions of each performance were judged by the method of selected description. Three major factors concerning adjectives used to describe the subjective impression of musical performances became apparent. These were "dynamics," "tranquility," and "sadness." In Experiment 2, instantaneous impressions were judged by the method of continuous judgment by selected description, and its relation to the overall impression was examined.