This repository contains stimuli and data for the manuscript Music predictability and liking enhance arousal and promote learning: evidence from pupillometry and motor responses in non-musicians. Bianco R., Gold B. P., Johnson A. P., Penhune V.B. Novel melodies were manipulated in their overall predictability (predictable/unpredictable) as objectively defined by a model of music expectation, and ranked as high/medium/low liked based on participants’ self-reports collected during an initial listening session. During this session we also recorded ocular pupil size as an implicit measure of listeners’ arousal/engagement. Learning was assessed during the motor task on target notes which were of similar motor and musical complexity across melodies. RESULTS: Pupil dilation was greater for liked melodies, particularly when predictable. Motor performance was facilitated by predictable more than unpredictable melodies, but liked melodies were learned regardless of their predictability. Low-liked melodies also showed learning but mostly in participants with higher scores of task-related intrinsic motivation.