There is a need for providing a vehicular music replay system that can allow a car user to select a music source appropriate to the user's character or biological condition even from genres unknown to the user, allow even a first music source to be felt suited for the user, and consequently enhance an emotion about encounter with an unknown music source. The system stores music sources to be replayed in music source databases in association with applicable user state data reflecting a user state containing at least one of a user character, mental condition, and physical condition. The system retrieves a music source corresponding to the current user state acquired in a car. During the retrieval, a higher retrieval priority is provided for a music source having a lower replay history in the past.