A method of processing and displaying train performance including analyzing train data received from the train or train simulator real time or from a data storage and preparing display data of the results of the analysis. A tone generator device is capable of sounding musical tones based on data representing preset musical tone control information or user musical tone control information. A gear reduction is accomplished by rotating the web with the web-rotating device, providing a high gear reduction. The method further includes obtaining a pointer associated with the hash table address.