This webpage contains the stimuli used in Erica Huynh's dissertation: Categorization, Differentiation, and Learning of Atypically Combined Mechanical Properties of Musical Instruments. stim_SS1–3 comprises the stimuli used in Chapters II and III of the dissertation. stim_SSL comprises the stimuli used in Chapter IV of the dissertation. Excitations: Bo = bowing, Bl = blowing, Sk = striking Resonators: Sg = string, Ac = air column, Pl = plate