1. An audio device control device for controlling an audio device for reproducing music comprising: music specification information storing means which stores specification information for specifying the music in advance; constant storing means which stores a phrase and a predetermined constant in association with one another in advance; speech recognition means which acquires speech data representing a speech, and specifies a candidate for a phrase included in said speech by performing speech recognition on said speech data, and calculates likelihood for each of the candidate of the specified phrase; operational status information acquisition means which acquires operational status information indicating an operational status of the audio device to be controlled; and audio device control means which calculates a parameter for specifying music based on the predetermined constant corresponding to the phrase specified by the speech recognition means and the likelihood calculated by the speech recognition means, specifies music reproduced by the audio device based on the operational status acquired by said operational status information acquisition means and on the calculated parameter; and controls said audio device for reproducing the specified music.